diff --git a/Loop.xcodeproj/project.pbxproj b/Loop.xcodeproj/project.pbxproj
index e0ee11a31d..5c4601077b 100644
--- a/Loop.xcodeproj/project.pbxproj
+++ b/Loop.xcodeproj/project.pbxproj
@@ -32,7 +32,9 @@
 		432E73CB1D24B3D6009AD15D /* RemoteDataManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 432E73CA1D24B3D6009AD15D /* RemoteDataManager.swift */; };
 		433EA4C21D9F39C900CD78FB /* PumpIDTableViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 433EA4C11D9F39C900CD78FB /* PumpIDTableViewController.swift */; };
 		433EA4C41D9F71C800CD78FB /* CommandResponseViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 433EA4C31D9F71C800CD78FB /* CommandResponseViewController.swift */; };
+		4341F4EB1EDB92AC001C936B /* LogglyService.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4341F4EA1EDB92AC001C936B /* LogglyService.swift */; };
 		43441A9C1EDB34810087958C /* StatusExtensionContext+LoopKit.swift in Sources */ = {isa = PBXBuildFile; fileRef = 43441A9B1EDB34810087958C /* StatusExtensionContext+LoopKit.swift */; };
+		43441AA01EDB4D390087958C /* OSLog.swift in Sources */ = {isa = PBXBuildFile; fileRef = 43441A9F1EDB4D390087958C /* OSLog.swift */; };
 		4346D1E71C77F5FE00ABAFE3 /* ChartTableViewCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4346D1E61C77F5FE00ABAFE3 /* ChartTableViewCell.swift */; };
 		4346D1F61C78501000ABAFE3 /* ChartPoint+Loop.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4346D1F51C78501000ABAFE3 /* ChartPoint+Loop.swift */; };
 		434F54571D287FDB002A9274 /* NibLoadable.swift in Sources */ = {isa = PBXBuildFile; fileRef = 434F54561D287FDB002A9274 /* NibLoadable.swift */; };
@@ -378,7 +380,9 @@
 		4337615E1D52F487004A3647 /* GlucoseHUDView.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = GlucoseHUDView.swift; sourceTree = "<group>"; };
 		433EA4C11D9F39C900CD78FB /* PumpIDTableViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = PumpIDTableViewController.swift; sourceTree = "<group>"; };
 		433EA4C31D9F71C800CD78FB /* CommandResponseViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CommandResponseViewController.swift; sourceTree = "<group>"; };
+		4341F4EA1EDB92AC001C936B /* LogglyService.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = LogglyService.swift; sourceTree = "<group>"; };
 		43441A9B1EDB34810087958C /* StatusExtensionContext+LoopKit.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "StatusExtensionContext+LoopKit.swift"; sourceTree = "<group>"; };
+		43441A9F1EDB4D390087958C /* OSLog.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = OSLog.swift; sourceTree = "<group>"; };
 		4346D1E61C77F5FE00ABAFE3 /* ChartTableViewCell.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ChartTableViewCell.swift; sourceTree = "<group>"; };
 		4346D1EF1C781BEA00ABAFE3 /* SwiftCharts.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = SwiftCharts.framework; path = Carthage/Build/iOS/SwiftCharts.framework; sourceTree = "<group>"; };
 		4346D1F51C78501000ABAFE3 /* ChartPoint+Loop.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "ChartPoint+Loop.swift"; sourceTree = "<group>"; };
@@ -739,6 +743,7 @@
 			isa = PBXGroup;
 			children = (
 				438849EB1D29EC34003B3F23 /* AmplitudeService.swift */,
+				4341F4EA1EDB92AC001C936B /* LogglyService.swift */,
 				438849ED1D2A1EBB003B3F23 /* MLabService.swift */,
 				438849E91D297CB6003B3F23 /* NightscoutService.swift */,
 				437CCADF1D285C7B0075D2C3 /* ServiceAuthentication.swift */,
@@ -842,6 +847,7 @@
 				43CEE6E51E56AFD400CB9116 /* NightscoutUploader.swift */,
 				4398973A1CD2FC2000223065 /* NSDateFormatter.swift */,
 				43E344A31B9E1B1C00C85C07 /* NSUserDefaults.swift */,
+				43441A9F1EDB4D390087958C /* OSLog.swift */,
 				43BFF0CA1E466C0900FF19A9 /* StateColorPalette.swift */,
 				43F41C361D3BF32400C11ED6 /* UIAlertController.swift */,
 				43BFF0BB1E45C80600FF19A9 /* UIColor+Loop.swift */,
@@ -1442,6 +1448,7 @@
 				43776F901B8022E90074EA36 /* AppDelegate.swift in Sources */,
 				437CCADA1D284ADF0075D2C3 /* AuthenticationTableViewCell.swift in Sources */,
 				439BED2E1E760BC600B0AED5 /* EnliteCGMManager.swift in Sources */,
+				4341F4EB1EDB92AC001C936B /* LogglyService.swift in Sources */,
 				43CE7CDE1CA8B63E003CC1B0 /* Data.swift in Sources */,
 				43BFF0CB1E466C0900FF19A9 /* StateColorPalette.swift in Sources */,
 				438991691E91B571000EEF90 /* ChartPoint.swift in Sources */,
@@ -1500,6 +1507,7 @@
 				43F41C371D3BF32400C11ED6 /* UIAlertController.swift in Sources */,
 				433EA4C41D9F71C800CD78FB /* CommandResponseViewController.swift in Sources */,
 				434F545F1D288345002A9274 /* ShareService.swift in Sources */,
+				43441AA01EDB4D390087958C /* OSLog.swift in Sources */,
 				43CEE6E61E56AFD400CB9116 /* NightscoutUploader.swift in Sources */,
 				4328E0331CFC091100E199AA /* WatchContext+LoopKit.swift in Sources */,
 				4F526D611DF8D9A900A04910 /* NetBasal.swift in Sources */,
diff --git a/Loop/AppDelegate.swift b/Loop/AppDelegate.swift
index d35f243872..bf79ce0f9e 100644
--- a/Loop/AppDelegate.swift
+++ b/Loop/AppDelegate.swift
@@ -23,7 +23,11 @@ final class AppDelegate: UIResponder, UIApplicationDelegate {
 
         NotificationManager.authorize(delegate: self)
 
-        AnalyticsManager.sharedManager.application(application, didFinishLaunchingWithOptions: launchOptions)
+        let bundle = Bundle(for: type(of: self))
+        DiagnosticLogger.shared = DiagnosticLogger(subsystem: bundle.bundleIdentifier!, version: bundle.shortVersionString)
+        DiagnosticLogger.shared?.forCategory("AppDelegate").info(#function)
+
+        AnalyticsManager.shared.application(application, didFinishLaunchingWithOptions: launchOptions)
 
         if  let navVC = window?.rootViewController as? UINavigationController,
             let statusVC = navVC.viewControllers.first as? StatusTableViewController {
@@ -75,7 +79,7 @@ extension AppDelegate: UNUserNotificationCenterDelegate {
                 let startDate = response.notification.request.content.userInfo[NotificationManager.UserInfoKey.bolusStartDate.rawValue] as? Date,
                 startDate.timeIntervalSinceNow >= TimeInterval(minutes: -5)
             {
-                AnalyticsManager.sharedManager.didRetryBolus()
+                AnalyticsManager.shared.didRetryBolus()
 
                 deviceManager.enactBolus(units: units, at: startDate) { (_) in
                     completionHandler()
diff --git a/Loop/Extensions/OSLog.swift b/Loop/Extensions/OSLog.swift
new file mode 100644
index 0000000000..b0902d98c7
--- /dev/null
+++ b/Loop/Extensions/OSLog.swift
@@ -0,0 +1,27 @@
+//
+//  OSLog.swift
+//  Loop
+//
+//  Copyright © 2017 LoopKit Authors. All rights reserved.
+//
+
+import os.log
+
+
+extension OSLog {
+    func debug(_ message: StaticString, _ args: CVarArg...) {
+        log(message, type: .debug, args)
+    }
+
+    func info(_ message: StaticString, _ args: CVarArg...) {
+        log(message, type: .info, args)
+    }
+
+    func error(_ message: StaticString, _ args: CVarArg...) {
+        log(message, type: .error, args)
+    }
+
+    private func log(_ message: StaticString, type: OSLogType, _ args: CVarArg...) {
+        os_log(message, log: self, type: type, args)
+    }
+}
diff --git a/Loop/Managers/AnalyticsManager.swift b/Loop/Managers/AnalyticsManager.swift
index 5f48b269de..5c828c6575 100644
--- a/Loop/Managers/AnalyticsManager.swift
+++ b/Loop/Managers/AnalyticsManager.swift
@@ -26,7 +26,7 @@ final class AnalyticsManager {
         }
     }
 
-    static let sharedManager = AnalyticsManager()
+    static let shared = AnalyticsManager()
 
     // MARK: - Helpers
 
diff --git a/Loop/Managers/DeviceDataManager.swift b/Loop/Managers/DeviceDataManager.swift
index 1191a4b12f..5ae758ddd1 100644
--- a/Loop/Managers/DeviceDataManager.swift
+++ b/Loop/Managers/DeviceDataManager.swift
@@ -23,7 +23,7 @@ final class DeviceDataManager {
 
     // MARK: - Utilities
 
-    let logger = DiagnosticLogger()
+    let logger = DiagnosticLogger.shared!
 
     /// Remember the launch date of the app for diagnostic reporting
     fileprivate let launchDate = Date()
@@ -61,7 +61,7 @@ final class DeviceDataManager {
             }
 
             if let oldVal = oldVal, newVal - oldVal >= 0.5 {
-                AnalyticsManager.sharedManager.pumpBatteryWasReplaced()
+                AnalyticsManager.shared.pumpBatteryWasReplaced()
             }
         }
     }
@@ -93,7 +93,7 @@ final class DeviceDataManager {
                 case is MySentryAlertMessageBody, is MySentryAlertClearedMessageBody:
                     break
                 case let body:
-                    logger.addMessage(["messageType": Int(message.messageType.rawValue), "messageBody": body.txData.hexadecimalString], toCollection: "sentryOther")
+                    logger.forCategory("MySentry").info(["messageType": Int(message.messageType.rawValue), "messageBody": body.txData.hexadecimalString])
                 }
             default:
                 break
@@ -112,7 +112,7 @@ final class DeviceDataManager {
 
         rileyLinkManager.connectDevice(device)
 
-        AnalyticsManager.sharedManager.didChangeRileyLinkConnectionState()
+        AnalyticsManager.shared.didChangeRileyLinkConnectionState()
     }
 
     func disconnectFromRileyLink(_ device: RileyLinkDevice) {
@@ -120,7 +120,7 @@ final class DeviceDataManager {
 
         rileyLinkManager.disconnectDevice(device)
 
-        AnalyticsManager.sharedManager.didChangeRileyLinkConnectionState()
+        AnalyticsManager.shared.didChangeRileyLinkConnectionState()
 
         if connectedPeripheralIDs.count == 0 {
             NotificationManager.clearPendingNotificationRequests()
@@ -246,7 +246,7 @@ final class DeviceDataManager {
                     }
 
                     if newValue.unitVolume > previousVolume + 1 {
-                        AnalyticsManager.sharedManager.reservoirWasRewound()
+                        AnalyticsManager.shared.reservoirWasRewound()
                     }
                 }
             }
diff --git a/Loop/Managers/DiagnosticLogger+LoopKit.swift b/Loop/Managers/DiagnosticLogger+LoopKit.swift
index 5e610942a6..0bdf1e1717 100644
--- a/Loop/Managers/DiagnosticLogger+LoopKit.swift
+++ b/Loop/Managers/DiagnosticLogger+LoopKit.swift
@@ -13,16 +13,14 @@ import LoopKit
 
 extension DiagnosticLogger {
     func addError(_ message: String, fromSource source: String) {
-        let info = [
-            "source": source,
-            "message": message,
-            "reportedAt": DateFormatter.ISO8601StrictDateFormatter().string(from: Date())
+        let message = [
+            "message": message
         ]
 
-        addMessage(info, toCollection: "errors")
+        forCategory(source).error(message)
     }
 
     func addError(_ message: Error, fromSource source: String) {
-        addError(String(describing: message), fromSource: source)
+        forCategory(source).error(message)
     }
 }
diff --git a/Loop/Managers/DiagnosticLogger.swift b/Loop/Managers/DiagnosticLogger.swift
index 84d6e707a2..e647cf21b1 100644
--- a/Loop/Managers/DiagnosticLogger.swift
+++ b/Loop/Managers/DiagnosticLogger.swift
@@ -7,10 +7,13 @@
 //
 
 import Foundation
+import os.log
 
 
 final class DiagnosticLogger {
-    private lazy var isSimulator: Bool = TARGET_OS_SIMULATOR != 0
+    private let isSimulator: Bool = TARGET_OS_SIMULATOR != 0
+    let subsystem: String
+    let version: String
 
     var mLabService: MLabService {
         didSet {
@@ -18,23 +21,121 @@ final class DiagnosticLogger {
         }
     }
 
-    init() {
+    var logglyService: LogglyService {
+        didSet {
+            try! KeychainManager().setLogglyCustomerToken(logglyService.customerToken)
+        }
+    }
+
+    let remoteLogLevel: OSLogType
+
+    static var shared: DiagnosticLogger?
+
+    init(subsystem: String, version: String) {
+        self.subsystem = subsystem
+        self.version = version
+        remoteLogLevel = isSimulator ? .fault : .info
+
         if let (databaseName, APIKey) = KeychainManager().getMLabCredentials() {
             mLabService = MLabService(databaseName: databaseName, APIKey: APIKey)
         } else {
             mLabService = MLabService(databaseName: nil, APIKey: nil)
         }
+
+        let customerToken = KeychainManager().getLogglyCustomerToken()
+        logglyService = LogglyService(customerToken: customerToken)
     }
 
-    func addMessage(_ message: [String: Any], toCollection collection: String) {
-        if !isSimulator,
-            let messageData = try? JSONSerialization.data(withJSONObject: message, options: []),
-            let task = mLabService.uploadTaskWithData(messageData, inCollection: collection)
-        {
-            task.resume()
-        } else {
-            NSLog("%@: %@", collection, message)
+    func forCategory(_ category: String) -> CategoryLogger {
+        return CategoryLogger(logger: self, category: category)
+    }
+}
+
+
+extension OSLogType {
+    fileprivate var tagName: String {
+        switch self {
+        case let t where t == .info:
+            return "info"
+        case let t where t == .debug:
+            return "debug"
+        case let t where t == .error:
+            return "error"
+        case let t where t == .fault:
+            return "fault"
+        default:
+            return "default"
+        }
+    }
+}
+
+
+final class CategoryLogger {
+    private let logger: DiagnosticLogger
+    let category: String
+
+    private let systemLog: OSLog
+
+    fileprivate init(logger: DiagnosticLogger, category: String) {
+        self.logger = logger
+        self.category = category
+
+        systemLog = OSLog(subsystem: logger.subsystem, category: category)
+    }
+
+    private func remoteLog(_ type: OSLogType, message: String) {
+        guard logger.remoteLogLevel.rawValue <= type.rawValue else {
+            return
+        }
+
+        logger.logglyService.client?.send(message, tags: [type.tagName, category])
+    }
+
+    private func remoteLog(_ type: OSLogType, message: [String: Any]) {
+        guard logger.remoteLogLevel.rawValue <= type.rawValue else {
+            return
         }
+
+        logger.logglyService.client?.send(message, tags: [type.tagName, category])
+
+        // Legacy mLab logging. To be removed.
+        if let messageData = try? JSONSerialization.data(withJSONObject: message, options: []) {
+            logger.mLabService.uploadTaskWithData(messageData, inCollection: category)?.resume()
+        }
+    }
+
+    func debug(_ message: [String: Any]) {
+        systemLog.debug("%{public}@", String(describing: message))
+        remoteLog(.debug, message: message)
+    }
+
+    func debug(_ message: String) {
+        systemLog.error("%{public}@", message)
+        remoteLog(.debug, message: message)
+    }
+
+    func info(_ message: [String: Any]) {
+        systemLog.info("%{public}@", String(describing: message))
+        remoteLog(.info, message: message)
+    }
+
+    func info(_ message: String) {
+        systemLog.error("%{public}@", message)
+        remoteLog(.info, message: message)
+    }
+
+    func error(_ message: [String: Any]) {
+        systemLog.error("%{public}@", String(reflecting: message))
+        remoteLog(.error, message: message)
+    }
+
+    func error(_ message: String) {
+        systemLog.error("%{public}@", message)
+        remoteLog(.error, message: message)
+    }
+
+    func error(_ error: Error) {
+        self.error(String(reflecting: error))
     }
 }
 
diff --git a/Loop/Managers/KeychainManager+Loop.swift b/Loop/Managers/KeychainManager+Loop.swift
index d2e2225c48..e8200283b5 100644
--- a/Loop/Managers/KeychainManager+Loop.swift
+++ b/Loop/Managers/KeychainManager+Loop.swift
@@ -9,20 +9,11 @@
 import Foundation
 
 
-private let AmplitudeAPIKeyService = "AmplitudeAPIKey"
 private let DexcomShareURL = URL(string: "https://share1.dexcom.com")!
 private let NightscoutAccount = "NightscoutAPI"
 
 
 extension KeychainManager {
-    func setAmplitudeAPIKey(_ key: String?) throws {
-        try replaceGenericPassword(key, forService: AmplitudeAPIKeyService)
-    }
-
-    func getAmplitudeAPIKey() -> String? {
-        return try? getGenericPasswordForService(AmplitudeAPIKeyService)
-    }
-
     func setDexcomShareUsername(_ username: String?, password: String?) throws {
         let credentials: InternetCredentials?
 
diff --git a/Loop/Managers/LoopDataManager.swift b/Loop/Managers/LoopDataManager.swift
index 9822e879a4..dd20aa0df6 100644
--- a/Loop/Managers/LoopDataManager.swift
+++ b/Loop/Managers/LoopDataManager.swift
@@ -37,7 +37,7 @@ final class LoopDataManager {
 
     unowned let delegate: LoopDataManagerDelegate
 
-    private let logger = DiagnosticLogger()
+    private let logger: CategoryLogger
 
     init(
         delegate: LoopDataManagerDelegate,
@@ -50,6 +50,7 @@ final class LoopDataManager {
         settings: LoopSettings = UserDefaults.standard.loopSettings ?? LoopSettings()
     ) {
         self.delegate = delegate
+        self.logger = DiagnosticLogger.shared!.forCategory("LoopDataManager")
         self.lastLoopCompleted = lastLoopCompleted
         self.lastTempBasal = lastTempBasal
         self.settings = settings
@@ -93,7 +94,7 @@ final class LoopDataManager {
         didSet {
             UserDefaults.standard.loopSettings = settings
             notify(forChange: .preferences)
-            AnalyticsManager.sharedManager.didChangeLoopSettings(from: oldValue, to: settings)
+            AnalyticsManager.shared.didChangeLoopSettings(from: oldValue, to: settings)
         }
     }
 
@@ -160,7 +161,7 @@ final class LoopDataManager {
             UserDefaults.standard.insulinActionDuration = newValue
 
             if oldValue != newValue {
-                AnalyticsManager.sharedManager.didChangeInsulinActionDuration()
+                AnalyticsManager.shared.didChangeInsulinActionDuration()
             }
         }
     }
@@ -355,7 +356,7 @@ final class LoopDataManager {
                         self.lastLoopError = error
 
                         if let error = error {
-                            self.logger.addError(error, fromSource: "TempBasal")
+                            self.logger.error(error)
                         } else {
                             self.lastLoopCompleted = Date()
                         }
@@ -412,7 +413,7 @@ final class LoopDataManager {
             updateGroup.enter()
             glucoseStore.getRecentMomentumEffect { (effects, error) -> Void in
                 if let error = error, effects.count == 0 {
-                    self.logger.addError(error, fromSource: "GlucoseStore")
+                    self.logger.error(error)
                     self.glucoseMomentumEffect = nil
                 } else {
                     self.glucoseMomentumEffect = effects
@@ -427,7 +428,7 @@ final class LoopDataManager {
             carbStore.getGlucoseEffects(start: retrospectiveStart) { (result) -> Void in
                 switch result {
                 case .failure(let error):
-                    self.logger.addError(error, fromSource: "CarbStore")
+                    self.logger.error(error)
                     self.carbEffect = nil
                 case .success(let effects):
                     self.carbEffect = effects
@@ -450,7 +451,7 @@ final class LoopDataManager {
             doseStore.getGlucoseEffects(start: retrospectiveStart) { (result) -> Void in
                 switch result {
                 case .failure(let error):
-                    self.logger.addError(error, fromSource: "DoseStore")
+                    self.logger.error(error)
                     self.insulinEffect = nil
                 case .success(let effects):
                     self.insulinEffect = effects
@@ -465,7 +466,7 @@ final class LoopDataManager {
             doseStore.insulinOnBoard(at: Date()) { (result) in
                 switch result {
                 case .failure(let error):
-                    self.logger.addError(error, fromSource: "DoseStore")
+                    self.logger.error(error)
                     self.insulinOnBoard = nil
                 case .success(let value):
                     self.insulinOnBoard = value
@@ -480,7 +481,7 @@ final class LoopDataManager {
             do {
                 try updateRetrospectiveGlucoseEffect()
             } catch let error {
-                logger.addError(error, fromSource: "RetrospectiveGlucose")
+                logger.error(error)
             }
         }
 
@@ -488,7 +489,7 @@ final class LoopDataManager {
             do {
                 try updatePredictedGlucoseAndRecommendedBasal()
             } catch let error {
-                logger.addError(error, fromSource: "PredictGlucose")
+                logger.error(error)
 
                 throw error
             }
@@ -624,13 +625,13 @@ final class LoopDataManager {
         didSet {
             NotificationManager.scheduleLoopNotRunningNotifications()
 
-            AnalyticsManager.sharedManager.loopDidSucceed()
+            AnalyticsManager.shared.loopDidSucceed()
         }
     }
     fileprivate var lastLoopError: Error? {
         didSet {
             if lastLoopError != nil {
-                AnalyticsManager.sharedManager.loopDidError()
+                AnalyticsManager.shared.loopDidError()
             }
         }
     }
diff --git a/Loop/Managers/WatchDataManager.swift b/Loop/Managers/WatchDataManager.swift
index 1834842d8a..eabc1b780d 100644
--- a/Loop/Managers/WatchDataManager.swift
+++ b/Loop/Managers/WatchDataManager.swift
@@ -130,7 +130,7 @@ final class WatchDataManager: NSObject, WCSessionDelegate {
             deviceDataManager.loopManager.addCarbEntryAndRecommendBolus(newEntry) { (result) in
                 switch result {
                 case .success(let recommendation):
-                    AnalyticsManager.sharedManager.didAddCarbsFromWatch(carbEntry.value)
+                    AnalyticsManager.shared.didAddCarbsFromWatch(carbEntry.value)
                     completionHandler?(recommendation?.amount)
                 case .failure(let error):
                     self.deviceDataManager.logger.addError(error, fromSource: error is CarbStore.CarbStoreError ? "CarbStore" : "Bolus")
@@ -154,7 +154,7 @@ final class WatchDataManager: NSObject, WCSessionDelegate {
             if let bolus = SetBolusUserInfo(rawValue: message as SetBolusUserInfo.RawValue) {
                 self.deviceDataManager.enactBolus(units: bolus.value, at: bolus.startDate) { (error) in
                     if error == nil {
-                        AnalyticsManager.sharedManager.didSetBolusFromWatch(bolus.value)
+                        AnalyticsManager.shared.didSetBolusFromWatch(bolus.value)
                     }
 
                     replyHandler([:])
diff --git a/Loop/Models/ServiceAuthentication/AmplitudeService.swift b/Loop/Models/ServiceAuthentication/AmplitudeService.swift
index 63074738c4..923285eb41 100644
--- a/Loop/Models/ServiceAuthentication/AmplitudeService.swift
+++ b/Loop/Models/ServiceAuthentication/AmplitudeService.swift
@@ -10,7 +10,7 @@ import Foundation
 import Amplitude
 
 
-struct AmplitudeService: ServiceAuthentication {
+class AmplitudeService: ServiceAuthentication {
     var credentials: [ServiceCredential]
 
     let title: String = NSLocalizedString("Amplitude", comment: "The title of the Amplitude service")
@@ -37,7 +37,7 @@ struct AmplitudeService: ServiceAuthentication {
 
     var isAuthorized: Bool = true
 
-    mutating func verify(_ completion: @escaping (_ success: Bool, _ error: Error?) -> Void) {
+    func verify(_ completion: @escaping (_ success: Bool, _ error: Error?) -> Void) {
         guard let APIKey = APIKey else {
             isAuthorized = false
             completion(false, nil)
@@ -52,9 +52,23 @@ struct AmplitudeService: ServiceAuthentication {
         completion(true, nil)
     }
 
-    mutating func reset() {
+    func reset() {
         credentials[0].value = nil
         isAuthorized = false
         client = nil
     }
 }
+
+
+private let AmplitudeAPIKeyService = "AmplitudeAPIKey"
+
+
+extension KeychainManager {
+    func setAmplitudeAPIKey(_ key: String?) throws {
+        try replaceGenericPassword(key, forService: AmplitudeAPIKeyService)
+    }
+
+    func getAmplitudeAPIKey() -> String? {
+        return try? getGenericPasswordForService(AmplitudeAPIKeyService)
+    }
+}
diff --git a/Loop/Models/ServiceAuthentication/LogglyService.swift b/Loop/Models/ServiceAuthentication/LogglyService.swift
new file mode 100644
index 0000000000..b97e541c48
--- /dev/null
+++ b/Loop/Models/ServiceAuthentication/LogglyService.swift
@@ -0,0 +1,141 @@
+//
+//  LogglyService.swift
+//  Loop
+//
+//  Copyright © 2017 LoopKit Authors. All rights reserved.
+//
+
+import Foundation
+
+
+class LogglyService: ServiceAuthentication {
+    var credentials: [ServiceCredential]
+
+    let title: String = NSLocalizedString("Loggly", comment: "The title of the loggly service")
+
+    init(customerToken: String?) {
+        credentials = [
+            ServiceCredential(
+                title: NSLocalizedString("Customer Token", comment: "The title of the Loggly customer token credential"),
+                placeholder: nil,
+                isSecret: false,
+                keyboardType: .asciiCapable,
+                value: customerToken
+            )
+        ]
+
+        verify { _, _ in }
+    }
+
+    var client: LogglyClient?
+
+    var isAuthorized: Bool = true
+
+    var customerToken: String? {
+        return credentials[0].value
+    }
+
+    func verify(_ completion: @escaping (Bool, Error?) -> Void) {
+        guard let customerToken = customerToken else {
+            isAuthorized = false
+            completion(false, nil)
+            return
+        }
+
+        isAuthorized = true
+        client = LogglyClient(customerToken: customerToken)
+        completion(true, nil)
+    }
+
+    func reset() {
+        credentials[0].value = nil
+        isAuthorized = false
+        client = nil
+    }
+}
+
+
+private let LogglyURLSessionConfiguration = "LogglyURLSessionConfiguration"
+private let LogglyCustomerTokenService = "LogglyCustomerToken"
+
+
+extension KeychainManager {
+    func setLogglyCustomerToken(_ token: String?) throws {
+        try replaceGenericPassword(token, forService: LogglyCustomerTokenService)
+    }
+
+    func getLogglyCustomerToken() -> String? {
+        return try? getGenericPasswordForService(LogglyCustomerTokenService)
+    }
+}
+
+
+enum LogglyAPIEndpoint: String {
+    case inputs
+
+    private var base: String {
+        return "https://logs-01.loggly.com/\(rawValue)/"
+    }
+
+    func url(token: String, tags: [String]) -> URL {
+        let tags = tags.count > 0 ? tags : ["http"]
+        return URL(string: "\(base)\(token)/tag/\(tags.joined(separator: ","))/")!
+    }
+}
+
+
+extension URLSession {
+    fileprivate static func logglySession() -> URLSession {
+        let configuration = URLSessionConfiguration.ephemeral
+
+        configuration.isDiscretionary = true
+        configuration.sessionSendsLaunchEvents = false
+        configuration.networkServiceType = .background
+
+        return URLSession(configuration: configuration)
+    }
+
+    private func inputTask(body: Data, contentType: String, token: String, tags: [String]) -> URLSessionUploadTask? {
+        let url = LogglyAPIEndpoint.inputs.url(token: token, tags: tags)
+        var request = URLRequest(url: url)
+        request.httpMethod = "POST"
+        request.setValue(contentType, forHTTPHeaderField: "content-type")
+
+        return uploadTask(with: request, from: body)
+    }
+
+    fileprivate func inputTask(body: String, token: String, tags: [String]) -> URLSessionUploadTask? {
+        guard let data = body.data(using: .utf8) else {
+            return nil
+        }
+
+        return inputTask(body: data, contentType: "text/plain", token: token, tags: tags)
+    }
+
+    fileprivate func inputTask(body: [String: Any], token: String, tags: [String]) -> URLSessionUploadTask? {
+        do {
+            let data = try JSONSerialization.data(withJSONObject: body, options: [])
+            return inputTask(body: data, contentType: "application/json", token: token, tags: tags)
+        } catch {
+            return nil
+        }
+    }
+}
+
+
+class LogglyClient {
+    let customerToken: String
+    let session = URLSession.logglySession()
+
+    init(customerToken: String) {
+        self.customerToken = customerToken
+    }
+
+    func send(_ body: String, tags: [String]) {
+        session.inputTask(body: body, token: customerToken, tags: tags)?.resume()
+    }
+
+    func send(_ body: [String: Any], tags: [String]) {
+        session.inputTask(body: body, token: customerToken, tags: tags)?.resume()
+    }
+}
diff --git a/Loop/Models/ServiceAuthentication/MLabService.swift b/Loop/Models/ServiceAuthentication/MLabService.swift
index 174f205b1e..0330e69e6f 100644
--- a/Loop/Models/ServiceAuthentication/MLabService.swift
+++ b/Loop/Models/ServiceAuthentication/MLabService.swift
@@ -12,7 +12,7 @@ import Foundation
 private let mLabAPIHost = URL(string: "https://api.mongolab.com/api/1/databases")!
 
 
-struct MLabService: ServiceAuthentication {
+class MLabService: ServiceAuthentication {
     var credentials: [ServiceCredential]
 
     let title: String = NSLocalizedString("mLab", comment: "The title of the mLab service")
@@ -50,7 +50,7 @@ struct MLabService: ServiceAuthentication {
 
     var isAuthorized: Bool = false
 
-    mutating func verify(_ completion: @escaping (_ success: Bool, _ error: Error?) -> Void) {
+    func verify(_ completion: @escaping (_ success: Bool, _ error: Error?) -> Void) {
         guard let APIURL = APIURLForCollection("") else {
             completion(false, nil)
             return
@@ -66,7 +66,7 @@ struct MLabService: ServiceAuthentication {
         }).resume()
     }
 
-    mutating func reset() {
+    func reset() {
         credentials[0].value = nil
         credentials[1].value = nil
         isAuthorized = false
diff --git a/Loop/Models/ServiceAuthentication/NightscoutService.swift b/Loop/Models/ServiceAuthentication/NightscoutService.swift
index 3c796e480b..05baa0733d 100644
--- a/Loop/Models/ServiceAuthentication/NightscoutService.swift
+++ b/Loop/Models/ServiceAuthentication/NightscoutService.swift
@@ -11,7 +11,7 @@ import NightscoutUploadKit
 
 
 // Encapsulates a Nightscout site and its authentication
-struct NightscoutService: ServiceAuthentication {
+class NightscoutService: ServiceAuthentication {
     var credentials: [ServiceCredential]
 
     let title: String = NSLocalizedString("Nightscout", comment: "The title of the Nightscout service")
@@ -40,8 +40,9 @@ struct NightscoutService: ServiceAuthentication {
     // The uploader instance, if credentials are present
     private(set) var uploader: NightscoutUploader? {
         didSet {
+            let logger = DiagnosticLogger.shared?.forCategory("NightscoutService")
             uploader?.errorHandler = { (error: Error, context: String) -> Void in
-                print("Error \(error), while \(context)")
+                logger?.error("Error \(error), while \(context)")
             }
         }
     }
@@ -60,7 +61,7 @@ struct NightscoutService: ServiceAuthentication {
 
     var isAuthorized: Bool = true
 
-    mutating func verify(_ completion: @escaping (_ success: Bool, _ error: Error?) -> Void) {
+    func verify(_ completion: @escaping (_ success: Bool, _ error: Error?) -> Void) {
         guard let siteURL = siteURL, let APISecret = APISecret else {
             isAuthorized = false
             completion(false, nil)
@@ -74,7 +75,7 @@ struct NightscoutService: ServiceAuthentication {
         self.uploader = uploader
     }
 
-    mutating func reset() {
+    func reset() {
         credentials[0].value = nil
         credentials[1].value = nil
         isAuthorized = false
diff --git a/Loop/Models/ServiceAuthentication/ShareService.swift b/Loop/Models/ServiceAuthentication/ShareService.swift
index 93b40f9370..0c0f423aef 100644
--- a/Loop/Models/ServiceAuthentication/ShareService.swift
+++ b/Loop/Models/ServiceAuthentication/ShareService.swift
@@ -11,7 +11,7 @@ import ShareClient
 
 
 // Encapsulates the Dexcom Share client service and its authentication
-struct ShareService: ServiceAuthentication {
+class ShareService: ServiceAuthentication {
     var credentials: [ServiceCredential]
 
     let title: String = NSLocalizedString("Dexcom Share", comment: "The title of the Dexcom Share service")
@@ -53,7 +53,7 @@ struct ShareService: ServiceAuthentication {
 
     var isAuthorized: Bool = false
 
-    mutating func verify(_ completion: @escaping (_ success: Bool, _ error: Error?) -> Void) {
+    func verify(_ completion: @escaping (_ success: Bool, _ error: Error?) -> Void) {
         guard let username = username, let password = password else {
             completion(false, nil)
             return
@@ -66,7 +66,7 @@ struct ShareService: ServiceAuthentication {
         self.client = client
     }
 
-    mutating func reset() {
+    func reset() {
         credentials[0].value = nil
         credentials[1].value = nil
         isAuthorized = false
diff --git a/Loop/View Controllers/BolusViewController.swift b/Loop/View Controllers/BolusViewController.swift
index 53b9045857..2fb9c5b208 100644
--- a/Loop/View Controllers/BolusViewController.swift	
+++ b/Loop/View Controllers/BolusViewController.swift	
@@ -39,7 +39,7 @@ final class BolusViewController: UITableViewController, IdentifiableClass, UITex
 
         bolusAmountTextField.becomeFirstResponder()
 
-        AnalyticsManager.sharedManager.didDisplayBolusScreen()
+        AnalyticsManager.shared.didDisplayBolusScreen()
     }
 
     func generateActiveInsulinDescription(activeInsulin: Double?, pendingInsulin: Double?) -> String
diff --git a/Loop/View Controllers/SettingsTableViewController.swift b/Loop/View Controllers/SettingsTableViewController.swift
index b19bb60d82..93d6d4a849 100644
--- a/Loop/View Controllers/SettingsTableViewController.swift	
+++ b/Loop/View Controllers/SettingsTableViewController.swift	
@@ -14,6 +14,7 @@ import MinimedKit
 
 private let ConfigCellIdentifier = "ConfigTableViewCell"
 
+private let EnabledString = NSLocalizedString("Enabled", comment: "The detail text describing an enabled setting")
 private let TapToSetString = NSLocalizedString("Tap to set", comment: "The empty-state text for a configuration value")
 
 
@@ -53,7 +54,7 @@ final class SettingsTableViewController: UITableViewController, DailyValueSchedu
             }
         }
 
-        AnalyticsManager.sharedManager.didDisplaySettingsScreen()
+        AnalyticsManager.shared.didDisplaySettingsScreen()
     }
 
     override func viewDidDisappear(_ animated: Bool) {
@@ -118,6 +119,7 @@ final class SettingsTableViewController: UITableViewController, DailyValueSchedu
         case share = 0
         case nightscout
         case mLab
+        case loggly
         case amplitude
     }
 
@@ -361,11 +363,16 @@ final class SettingsTableViewController: UITableViewController, DailyValueSchedu
 
                 configCell.textLabel?.text = mLabService.title
                 configCell.detailTextLabel?.text = mLabService.databaseName ?? TapToSetString
+            case .loggly:
+                let logglyService = dataManager.logger.logglyService
+
+                configCell.textLabel?.text = logglyService.title
+                configCell.detailTextLabel?.text = logglyService.isAuthorized ? EnabledString : TapToSetString
             case .amplitude:
-                let amplitudeService = AnalyticsManager.sharedManager.amplitudeService
+                let amplitudeService = AnalyticsManager.shared.amplitudeService
 
                 configCell.textLabel?.text = amplitudeService.title
-                configCell.detailTextLabel?.text = amplitudeService.isAuthorized ? NSLocalizedString("Enabled", comment: "The detail text describing an enabled setting") : TapToSetString
+                configCell.detailTextLabel?.text = amplitudeService.isAuthorized ? EnabledString : TapToSetString
             }
 
             return configCell
@@ -619,12 +626,22 @@ final class SettingsTableViewController: UITableViewController, DailyValueSchedu
                     self.tableView.reloadRows(at: [indexPath], with: .none)
                 }
 
+                show(vc, sender: sender)
+            case .loggly:
+                let service = dataManager.logger.logglyService
+                let vc = AuthenticationViewController(authentication: service)
+                vc.authenticationObserver = { [unowned self] (service) in
+                    self.dataManager.logger.logglyService = service
+
+                    self.tableView.reloadRows(at: [indexPath], with: .none)
+                }
+
                 show(vc, sender: sender)
             case .amplitude:
-                let service = AnalyticsManager.sharedManager.amplitudeService
+                let service = AnalyticsManager.shared.amplitudeService
                 let vc = AuthenticationViewController(authentication: service)
                 vc.authenticationObserver = { [unowned self] (service) in
-                    AnalyticsManager.sharedManager.amplitudeService = service
+                    AnalyticsManager.shared.amplitudeService = service
 
                     self.tableView.reloadRows(at: [indexPath], with: .none)
                 }
@@ -746,22 +763,22 @@ final class SettingsTableViewController: UITableViewController, DailyValueSchedu
                 case .basalRate:
                     if let controller = controller as? SingleValueScheduleTableViewController {
                         dataManager.loopManager.basalRateSchedule = BasalRateSchedule(dailyItems: controller.scheduleItems, timeZone: controller.timeZone)
-                        AnalyticsManager.sharedManager.didChangeBasalRateSchedule()
+                        AnalyticsManager.shared.didChangeBasalRateSchedule()
                     }
                 case .glucoseTargetRange:
                     if let controller = controller as? GlucoseRangeScheduleTableViewController {
                         dataManager.loopManager.settings.glucoseTargetRangeSchedule = GlucoseRangeSchedule(unit: controller.unit, dailyItems: controller.scheduleItems, workoutRange: controller.workoutRange, timeZone: controller.timeZone)
-                        AnalyticsManager.sharedManager.didChangeGlucoseTargetRangeSchedule()
+                        AnalyticsManager.shared.didChangeGlucoseTargetRangeSchedule()
                     }
                 case let row:
                     if let controller = controller as? DailyQuantityScheduleTableViewController {
                         switch row {
                         case .carbRatio:
                             dataManager.loopManager.carbRatioSchedule = CarbRatioSchedule(unit: controller.unit, dailyItems: controller.scheduleItems, timeZone: controller.timeZone)
-                            AnalyticsManager.sharedManager.didChangeCarbRatioSchedule()
+                            AnalyticsManager.shared.didChangeCarbRatioSchedule()
                         case .insulinSensitivity:
                             dataManager.loopManager.insulinSensitivitySchedule = InsulinSensitivitySchedule(unit: controller.unit, dailyItems: controller.scheduleItems, timeZone: controller.timeZone)
-                            AnalyticsManager.sharedManager.didChangeInsulinSensitivitySchedule()
+                            AnalyticsManager.shared.didChangeInsulinSensitivitySchedule()
                         default:
                             break
                         }
diff --git a/Loop/View Controllers/StatusTableViewController.swift b/Loop/View Controllers/StatusTableViewController.swift
index f66f457e0f..fac86e04aa 100644
--- a/Loop/View Controllers/StatusTableViewController.swift	
+++ b/Loop/View Controllers/StatusTableViewController.swift	
@@ -101,7 +101,7 @@ final class StatusTableViewController: ChartsTableViewController {
     override func viewDidAppear(_ animated: Bool) {
         super.viewDidAppear(animated)
 
-        AnalyticsManager.sharedManager.didDisplayStatusScreen()
+        AnalyticsManager.shared.didDisplayStatusScreen()
     }
 
     override func viewWillDisappear(_ animated: Bool) {