diff --git a/.gitignore b/.gitignore
index 53505db84..e7f55eeae 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,3 +32,4 @@ Carthage
 # itself has no pod dependencies, only our tests do.
 Pods/
 .clang-format
+.idea
diff --git a/Analytics.xcodeproj/project.pbxproj b/Analytics.xcodeproj/project.pbxproj
index 724b881b8..0cdcb5611 100644
--- a/Analytics.xcodeproj/project.pbxproj
+++ b/Analytics.xcodeproj/project.pbxproj
@@ -8,6 +8,8 @@
 
 /* Begin PBXBuildFile section */
 		067E6A3191007B3442DB29F0 /* Pods_AnalyticsTestsTVOS.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 66058A0DB75544E7C2766C31 /* Pods_AnalyticsTestsTVOS.framework */; };
+		5AF0E8AE77F57B356DACCFE7 /* AutoScreenReportingTest.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5AF0E8457CCFC077382BF449 /* AutoScreenReportingTest.swift */; };
+		630FC8EA2107F2A500A759C5 /* SEGScreenReporting.h in Headers */ = {isa = PBXBuildFile; fileRef = 5AF0EDFEDC0EE79A0A0EB713 /* SEGScreenReporting.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		6E265C791FB1178C0030E08E /* IntegrationsManagerTest.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6E265C781FB1178C0030E08E /* IntegrationsManagerTest.swift */; };
 		6EEC1C712017EA370089C478 /* EndToEndTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6EEC1C702017EA370089C478 /* EndToEndTests.swift */; };
 		9D8CE59023EE014E00197D0C /* CryptoTest.swift in Sources */ = {isa = PBXBuildFile; fileRef = EADEB8E91DECD335005322DA /* CryptoTest.swift */; };
@@ -27,6 +29,7 @@
 		9D8CE59E23EE014E00197D0C /* TestUtils.swift in Sources */ = {isa = PBXBuildFile; fileRef = EADEB8E41DECD335005322DA /* TestUtils.swift */; };
 		9D8CE5A023EE014E00197D0C /* Analytics.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = EADEB85B1DECD080005322DA /* Analytics.framework */; };
 		A31958EF2385AC3A00A47EFA /* SerializationTests.m in Sources */ = {isa = PBXBuildFile; fileRef = A31958EE2385AC3A00A47EFA /* SerializationTests.m */; };
+		A31CAFC224635F8400443BA4 /* AutoScreenReportingTest.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5AF0E8457CCFC077382BF449 /* AutoScreenReportingTest.swift */; };
 		A352176023AD5825005B07F6 /* SEGMacros.h in Headers */ = {isa = PBXBuildFile; fileRef = A352175F23AD5825005B07F6 /* SEGMacros.h */; settings = {ATTRIBUTES = (Private, ); }; };
 		E4ACAD51DB827114D8626C74 /* Pods_AnalyticsTests.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 5238C0454BF56A36A536C5C1 /* Pods_AnalyticsTests.framework */; };
 		EA88A5981DED7608009FB66A /* SEGSerializableValue.h in Headers */ = {isa = PBXBuildFile; fileRef = EA88A5971DED7608009FB66A /* SEGSerializableValue.h */; settings = {ATTRIBUTES = (Public, ); }; };
@@ -117,6 +120,9 @@
 		03630CF57D6F100AC46A95FD /* Pods-AnalyticsTests.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-AnalyticsTests.release.xcconfig"; path = "Target Support Files/Pods-AnalyticsTests/Pods-AnalyticsTests.release.xcconfig"; sourceTree = "<group>"; };
 		4E5B177C4F6C1CAE4837FF7B /* Pods-AnalyticsTestsTVOS.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-AnalyticsTestsTVOS.debug.xcconfig"; path = "Target Support Files/Pods-AnalyticsTestsTVOS/Pods-AnalyticsTestsTVOS.debug.xcconfig"; sourceTree = "<group>"; };
 		5238C0454BF56A36A536C5C1 /* Pods_AnalyticsTests.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_AnalyticsTests.framework; sourceTree = BUILT_PRODUCTS_DIR; };
+		5AF0E8457CCFC077382BF449 /* AutoScreenReportingTest.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = AutoScreenReportingTest.swift; sourceTree = "<group>"; };
+		5AF0EDFEDC0EE79A0A0EB713 /* SEGScreenReporting.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = SEGScreenReporting.h; sourceTree = "<group>"; };
+		63E090D722DD49C300DEC7EC /* UIViewController+SegScreenTest.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "UIViewController+SegScreenTest.h"; sourceTree = "<group>"; };
 		66058A0DB75544E7C2766C31 /* Pods_AnalyticsTestsTVOS.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_AnalyticsTestsTVOS.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		6E265C781FB1178C0030E08E /* IntegrationsManagerTest.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = IntegrationsManagerTest.swift; sourceTree = "<group>"; };
 		6EEC1C702017EA370089C478 /* EndToEndTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = EndToEndTests.swift; sourceTree = "<group>"; };
@@ -312,6 +318,8 @@
 				6E265C781FB1178C0030E08E /* IntegrationsManagerTest.swift */,
 				6EEC1C702017EA370089C478 /* EndToEndTests.swift */,
 				A31958EE2385AC3A00A47EFA /* SerializationTests.m */,
+				5AF0E8457CCFC077382BF449 /* AutoScreenReportingTest.swift */,
+				63E090D722DD49C300DEC7EC /* UIViewController+SegScreenTest.h */,
 			);
 			indentWidth = 2;
 			path = AnalyticsTests;
@@ -393,6 +401,7 @@
 				A352175F23AD5825005B07F6 /* SEGMacros.h */,
 				EADEB8A21DECD12B005322DA /* UIViewController+SEGScreen.h */,
 				EADEB8A31DECD12B005322DA /* UIViewController+SEGScreen.m */,
+				5AF0EDFEDC0EE79A0A0EB713 /* SEGScreenReporting.h */,
 			);
 			path = Internal;
 			sourceTree = "<group>";
@@ -461,6 +470,7 @@
 				EADEB8601DECD080005322DA /* Analytics.h in Headers */,
 				EADEB8C31DECD12B005322DA /* SEGAnalyticsUtils.h in Headers */,
 				EADEB8B91DECD12B005322DA /* SEGIntegrationsManager.h in Headers */,
+				630FC8EA2107F2A500A759C5 /* SEGScreenReporting.h in Headers */,
 				EADEB8AE1DECD12B005322DA /* SEGAES256Crypto.h in Headers */,
 				EADEB8C51DECD12B005322DA /* SEGFileStorage.h in Headers */,
 				EAA5427D1EB42B8C00945DA7 /* SEGReachability.h in Headers */,
@@ -712,6 +722,7 @@
 				9D8CE59823EE014E00197D0C /* AnalyticsUtilTests.swift in Sources */,
 				9D8CE59923EE014E00197D0C /* StoreKitTrackerTests.swift in Sources */,
 				9D8CE59A23EE014E00197D0C /* MiddlewareTests.swift in Sources */,
+				A31CAFC224635F8400443BA4 /* AutoScreenReportingTest.swift in Sources */,
 				9D8CE59B23EE014E00197D0C /* IntegrationsManagerTest.swift in Sources */,
 				9D8CE59C23EE014E00197D0C /* NSData+SEGGUNZIPP.m in Sources */,
 				9D8CE59D23EE014E00197D0C /* EndToEndTests.swift in Sources */,
@@ -768,6 +779,7 @@
 				EADEB8EF1DECD335005322DA /* NSData+SEGGUNZIPP.m in Sources */,
 				6EEC1C712017EA370089C478 /* EndToEndTests.swift in Sources */,
 				EADEB8F01DECD335005322DA /* TestUtils.swift in Sources */,
+				5AF0E8AE77F57B356DACCFE7 /* AutoScreenReportingTest.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
diff --git a/Analytics.xcodeproj/xcshareddata/xcschemes/Analytics.xcscheme b/Analytics.xcodeproj/xcshareddata/xcschemes/Analytics.xcscheme
index 8c0862b7c..cce21eeec 100644
--- a/Analytics.xcodeproj/xcshareddata/xcschemes/Analytics.xcscheme
+++ b/Analytics.xcodeproj/xcshareddata/xcschemes/Analytics.xcscheme
@@ -20,20 +20,6 @@
                ReferencedContainer = "container:Analytics.xcodeproj">
             </BuildableReference>
          </BuildActionEntry>
-         <BuildActionEntry
-            buildForTesting = "NO"
-            buildForRunning = "NO"
-            buildForProfiling = "NO"
-            buildForArchiving = "NO"
-            buildForAnalyzing = "NO">
-            <BuildableReference
-               BuildableIdentifier = "primary"
-               BlueprintIdentifier = "9D8CE58B23EE014E00197D0C"
-               BuildableName = "AnalyticsTestsTVOS.xctest"
-               BlueprintName = "AnalyticsTestsTVOS"
-               ReferencedContainer = "container:Analytics.xcodeproj">
-            </BuildableReference>
-         </BuildActionEntry>
       </BuildActionEntries>
    </BuildAction>
    <TestAction
diff --git a/Analytics/Analytics.h b/Analytics/Analytics.h
index 3957f487e..aff014083 100644
--- a/Analytics/Analytics.h
+++ b/Analytics/Analytics.h
@@ -19,3 +19,4 @@ FOUNDATION_EXPORT const unsigned char AnalyticsVersionString[];
 #import "SEGSegmentIntegrationFactory.h"
 #import "SEGContext.h"
 #import "SEGMiddleware.h"
+#import "SEGScreenReporting.h"
diff --git a/Analytics/Classes/Integrations/SEGIntegrationsManager.h b/Analytics/Classes/Integrations/SEGIntegrationsManager.h
index bbd0e24ba..ec17275cb 100644
--- a/Analytics/Classes/Integrations/SEGIntegrationsManager.h
+++ b/Analytics/Classes/Integrations/SEGIntegrationsManager.h
@@ -9,6 +9,12 @@
 #import <Foundation/Foundation.h>
 #import "SEGMiddleware.h"
 
+/**
+ * Filenames of "Application Support" files where essential data is stored.
+ */
+extern NSString *_Nonnull const kSEGAnonymousIdFilename;
+extern NSString *_Nonnull const kSEGCachedSettingsFilename;
+
 /**
  * NSNotification name, that is posted after integrations are loaded.
  */
diff --git a/Analytics/Classes/Integrations/SEGIntegrationsManager.m b/Analytics/Classes/Integrations/SEGIntegrationsManager.m
index 7fdd46340..07399aa58 100644
--- a/Analytics/Classes/Integrations/SEGIntegrationsManager.m
+++ b/Analytics/Classes/Integrations/SEGIntegrationsManager.m
@@ -26,9 +26,9 @@
 #import "SEGAliasPayload.h"
 
 NSString *SEGAnalyticsIntegrationDidStart = @"io.segment.analytics.integration.did.start";
-static NSString *const SEGAnonymousIdKey = @"SEGAnonymousId";
-static NSString *const kSEGAnonymousIdFilename = @"segment.anonymousId";
-static NSString *const SEGCachedSettingsKey = @"analytics.settings.v2.plist";
+NSString *const SEGAnonymousIdKey = @"SEGAnonymousId";
+NSString *const kSEGAnonymousIdFilename = @"segment.anonymousId";
+NSString *const kSEGCachedSettingsFilename = @"analytics.settings.v2.plist";
 
 
 @interface SEGIdentifyPayload (AnonymousId)
@@ -357,9 +357,9 @@ - (NSDictionary *)cachedSettings
 {
     if (!_cachedSettings) {
 #if TARGET_OS_TV
-        _cachedSettings = [self.userDefaultsStorage dictionaryForKey:SEGCachedSettingsKey] ?: @{};
+        _cachedSettings = [self.userDefaultsStorage dictionaryForKey:kSEGCachedSettingsFilename] ?: @{};
 #else
-        _cachedSettings = [self.fileStorage dictionaryForKey:SEGCachedSettingsKey] ?: @{};
+        _cachedSettings = [self.fileStorage dictionaryForKey:kSEGCachedSettingsFilename] ?: @{};
 #endif
     }
     
@@ -375,9 +375,9 @@ - (void)setCachedSettings:(NSDictionary *)settings
     }
     
 #if TARGET_OS_TV
-    [self.userDefaultsStorage setDictionary:_cachedSettings forKey:SEGCachedSettingsKey];
+    [self.userDefaultsStorage setDictionary:_cachedSettings forKey:kSEGCachedSettingsFilename];
 #else
-    [self.fileStorage setDictionary:_cachedSettings forKey:SEGCachedSettingsKey];
+    [self.fileStorage setDictionary:_cachedSettings forKey:kSEGCachedSettingsFilename];
 #endif
 
     [self updateIntegrationsWithSettings:settings[@"integrations"]];
diff --git a/Analytics/Classes/Internal/SEGAnalyticsUtils.h b/Analytics/Classes/Internal/SEGAnalyticsUtils.h
index 82b8aa8e2..6214a9a3a 100644
--- a/Analytics/Classes/Internal/SEGAnalyticsUtils.h
+++ b/Analytics/Classes/Internal/SEGAnalyticsUtils.h
@@ -5,9 +5,6 @@ NS_ASSUME_NONNULL_BEGIN
 
 NSString *GenerateUUIDString(void);
 
-// Validation Utils
-BOOL serializableDictionaryTypes(NSDictionary *dict);
-
 // Date Utils
 NSString *iso8601FormattedString(NSDate *date);
 NSString *iso8601NanoFormattedString(NSDate *date);
diff --git a/Analytics/Classes/Internal/SEGFileStorage.m b/Analytics/Classes/Internal/SEGFileStorage.m
index c25594999..ed534dbab 100644
--- a/Analytics/Classes/Internal/SEGFileStorage.m
+++ b/Analytics/Classes/Internal/SEGFileStorage.m
@@ -109,10 +109,18 @@ - (void)setArray:(nullable NSArray *)array forKey:(NSString *)key
 
 - (nullable NSString *)stringForKey:(NSString *)key
 {
-    NSDictionary *data = [self jsonForKey:key];
-    if (data) {
+    id data = [self jsonForKey:key];
+
+    if (data == nil) {
+        return nil;
+    }
+
+    if ([data isKindOfClass:[NSString class]]) {
+        return data;
+    } else if ([data isKindOfClass:[NSDictionary class]]) {
         return data[key];
     }
+
     return nil;
 }
 
diff --git a/Analytics/Classes/Internal/SEGScreenReporting.h b/Analytics/Classes/Internal/SEGScreenReporting.h
new file mode 100644
index 000000000..f40a05887
--- /dev/null
+++ b/Analytics/Classes/Internal/SEGScreenReporting.h
@@ -0,0 +1,17 @@
+#import <UIKit/UIKit.h>
+#import "SEGSerializableValue.h"
+
+/** Implement this protocol to override automatic screen reporting
+ */
+
+NS_ASSUME_NONNULL_BEGIN
+
+@protocol SEGScreenReporting
+@optional
+-(void) seg_trackScreen:(UIViewController*)screen name:(NSString*)name;
+@property (readonly, nullable) UIViewController *seg_mainViewController;
+@end
+
+NS_ASSUME_NONNULL_END
+
+
diff --git a/Analytics/Classes/Internal/SEGSegmentIntegration.h b/Analytics/Classes/Internal/SEGSegmentIntegration.h
index 63942277c..c32e01d70 100644
--- a/Analytics/Classes/Internal/SEGSegmentIntegration.h
+++ b/Analytics/Classes/Internal/SEGSegmentIntegration.h
@@ -9,6 +9,13 @@ extern NSString *const SEGSegmentDidSendRequestNotification;
 extern NSString *const SEGSegmentRequestDidSucceedNotification;
 extern NSString *const SEGSegmentRequestDidFailNotification;
 
+/**
+ * Filenames of "Application Support" files where essential data is stored.
+ */
+extern NSString *const kSEGUserIdFilename;
+extern NSString *const kSEGQueueFilename;
+extern NSString *const kSEGTraitsFilename;
+
 
 @interface SEGSegmentIntegration : NSObject <SEGIntegration>
 
diff --git a/Analytics/Classes/Internal/UIViewController+SEGScreen.h b/Analytics/Classes/Internal/UIViewController+SEGScreen.h
index 4d762f08c..8be5cb080 100644
--- a/Analytics/Classes/Internal/UIViewController+SEGScreen.h
+++ b/Analytics/Classes/Internal/UIViewController+SEGScreen.h
@@ -1,5 +1,5 @@
 #import <UIKit/UIKit.h>
-
+#import "SEGSerializableValue.h"
 
 @interface UIViewController (SEGScreen)
 
@@ -7,3 +7,4 @@
 + (UIViewController *)seg_topViewController;
 
 @end
+
diff --git a/Analytics/Classes/Internal/UIViewController+SEGScreen.m b/Analytics/Classes/Internal/UIViewController+SEGScreen.m
index 8aaaa5861..4b1a7847f 100644
--- a/Analytics/Classes/Internal/UIViewController+SEGScreen.m
+++ b/Analytics/Classes/Internal/UIViewController+SEGScreen.m
@@ -2,6 +2,7 @@
 #import <objc/runtime.h>
 #import "SEGAnalytics.h"
 #import "SEGAnalyticsUtils.h"
+#import "SEGScreenReporting.h"
 
 
 @implementation UIViewController (SEGScreen)
@@ -43,18 +44,48 @@ + (UIViewController *)seg_topViewController
 }
 
 + (UIViewController *)seg_topViewController:(UIViewController *)rootViewController
+{
+    UIViewController *nextRootViewController = [self seg_nextRootViewController:rootViewController];
+    if (nextRootViewController) {
+        return [self seg_topViewController:nextRootViewController];
+    }
+
+    return rootViewController;
+}
+
++ (UIViewController *)seg_nextRootViewController:(UIViewController *)rootViewController
 {
     UIViewController *presentedViewController = rootViewController.presentedViewController;
     if (presentedViewController != nil) {
-        return [self seg_topViewController:presentedViewController];
+        return presentedViewController;
     }
 
     if ([rootViewController isKindOfClass:[UINavigationController class]]) {
-        UIViewController *lastViewController = [[(UINavigationController *)rootViewController viewControllers] lastObject];
-        return [self seg_topViewController:lastViewController];
+        UIViewController *lastViewController = ((UINavigationController *)rootViewController).viewControllers.lastObject;
+        return lastViewController;
     }
 
-    return rootViewController;
+    if ([rootViewController isKindOfClass:[UITabBarController class]]) {
+        __auto_type *currentTabViewController = ((UITabBarController*)rootViewController).selectedViewController;
+        if (currentTabViewController != nil) {
+            return currentTabViewController;
+        }
+    }
+
+    if (rootViewController.childViewControllers.count > 0) {
+        if ([rootViewController conformsToProtocol:@protocol(SEGScreenReporting)] && [rootViewController respondsToSelector:@selector(seg_mainViewController)]) {
+            __auto_type screenReporting = (UIViewController<SEGScreenReporting>*)rootViewController;
+            return screenReporting.seg_mainViewController;
+        }
+
+        // fall back on first child UIViewController as a "best guess" assumption
+        __auto_type *firstChildViewController = rootViewController.childViewControllers.firstObject;
+        if (firstChildViewController != nil) {
+            return firstChildViewController;
+        }
+    }
+
+    return nil;
 }
 
 - (void)seg_viewDidAppear:(BOOL)animated
@@ -74,6 +105,13 @@ - (void)seg_viewDidAppear:(BOOL)animated
             name = @"Unknown";
         }
     }
+
+    if ([top conformsToProtocol:@protocol(SEGScreenReporting)] && [top respondsToSelector:@selector(seg_trackScreen:name:)]) {
+        __auto_type screenReporting = (UIViewController<SEGScreenReporting>*)top;
+        [screenReporting seg_trackScreen:top name:name];
+        return;
+    }
+
     [[SEGAnalytics sharedAnalytics] screen:name properties:nil options:nil];
 
     [self seg_viewDidAppear:animated];
diff --git a/Analytics/Classes/SEGAnalytics.m b/Analytics/Classes/SEGAnalytics.m
index d5cc92134..9159fe7bb 100644
--- a/Analytics/Classes/SEGAnalytics.m
+++ b/Analytics/Classes/SEGAnalytics.m
@@ -169,8 +169,12 @@ - (void)_applicationWillEnterForeground
     if (!self.configuration.trackApplicationLifecycleEvents) {
         return;
     }
+    NSString *currentVersion = [[NSBundle mainBundle] infoDictionary][@"CFBundleShortVersionString"];
+    NSString *currentBuild = [[NSBundle mainBundle] infoDictionary][@"CFBundleVersion"];
     [self track:@"Application Opened" properties:@{
         @"from_background" : @YES,
+        @"version" : currentVersion ?: @"",
+        @"build" : currentBuild ?: @"",
     }];
 }
 
diff --git a/Analytics/Classes/SEGAnalyticsConfiguration.m b/Analytics/Classes/SEGAnalyticsConfiguration.m
index 46d712351..b8b79806c 100644
--- a/Analytics/Classes/SEGAnalyticsConfiguration.m
+++ b/Analytics/Classes/SEGAnalyticsConfiguration.m
@@ -68,10 +68,7 @@ - (instancetype)init
         _factories = [NSMutableArray array];
         Class applicationClass = NSClassFromString(@"UIApplication");
         if (applicationClass) {
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
-            _application = [applicationClass performSelector:NSSelectorFromString(@"sharedApplication")];
-#pragma clang diagnostic pop
+            _application = [applicationClass performSelector:@selector(sharedApplication)];
         }
     }
     return self;
diff --git a/AnalyticsTests/AnalyticsTests-Bridging-Header.h b/AnalyticsTests/AnalyticsTests-Bridging-Header.h
index 877104033..07afba377 100644
--- a/AnalyticsTests/AnalyticsTests-Bridging-Header.h
+++ b/AnalyticsTests/AnalyticsTests-Bridging-Header.h
@@ -12,7 +12,10 @@
 #import <Analytics/SEGAnalyticsUtils.h>
 #import <Analytics/SEGIntegrationsManager.h>
 #import <Analytics/SEGUtils.h>
+#import <Analytics/SEGScreenReporting.h>
 
 #import "NSData+SEGGUNZIPP.h"
 // Temp hack. We should fix the LSNocilla podspec to make this header publicly available
 #import "LSMatcher.h"
+
+#import "UIViewController+SegScreenTest.h"
diff --git a/AnalyticsTests/AutoScreenReportingTest.swift b/AnalyticsTests/AutoScreenReportingTest.swift
new file mode 100644
index 000000000..2bb715f87
--- /dev/null
+++ b/AnalyticsTests/AutoScreenReportingTest.swift
@@ -0,0 +1,136 @@
+//
+// Created by David Whetstone on 2018-11-04.
+// Copyright (c) 2018 Segment. All rights reserved.
+//
+
+import Foundation
+import Quick
+import Nimble
+import SwiftTryCatch
+@testable import Analytics
+
+class AutoScreenReportingTests: QuickSpec {
+
+  override func spec() {
+
+    var window: UIWindow!
+    var rootVC: UIViewController!
+
+    beforeEach {
+      let config = SEGAnalyticsConfiguration(writeKey: "foobar")
+      config.trackApplicationLifecycleEvents = true
+      config.recordScreenViews = true
+
+      window = UIWindow()
+      rootVC = UIViewController()
+      window.addSubview(rootVC.view)
+    }
+
+
+    describe("given a single view controller") {
+
+      it("seg_topViewController returns that view controller") {
+        let actualVC = UIViewController.seg_topViewController(rootVC)
+        expect(actualVC) === rootVC
+      }
+    }
+
+    describe("given a presented view controller") {
+
+      var expectedVC: UIViewController!
+
+      beforeEach {
+        expectedVC = UIViewController()
+        rootVC.present(expectedVC, animated: false)
+      }
+
+      it("seg_topViewController returns the presented view controller") {
+        let actualVC = UIViewController.seg_topViewController(rootVC)
+        expect(actualVC) === expectedVC
+      }
+    }
+
+    describe("given a pushed view controller") {
+
+      var expectedVC: UIViewController!
+
+      beforeEach {
+        expectedVC = UIViewController()
+        let nc = UINavigationController()
+        rootVC.present(nc, animated: false)
+        nc.pushViewController(expectedVC, animated: false)
+      }
+
+      it("seg_topViewController returns the pushed view controller") {
+        let actualVC = UIViewController.seg_topViewController(rootVC)
+        expect(actualVC) === expectedVC
+      }
+    }
+
+    describe("given a child of a UITabBarController") {
+
+      var expectedVC: UIViewController!
+
+      beforeEach {
+        expectedVC = UIViewController()
+        let tabBarController = UITabBarController()
+        rootVC.present(tabBarController, animated: false)
+        tabBarController.viewControllers = [UIViewController(), expectedVC, UIViewController()]
+        tabBarController.selectedIndex = 1
+      }
+
+      it("seg_topViewController returns the currently selected view controller") {
+        let actualVC = UIViewController.seg_topViewController(rootVC)
+        expect(actualVC) === expectedVC
+      }
+    }
+
+    describe("given a child of a custom container view controller conforming to SEGScreenReporting") {
+
+      class CustomContainerViewController: UIViewController, SEGScreenReporting {
+        var selectedIndex: Int = 0
+        var seg_mainViewController: UIViewController? {
+          return childViewControllers[selectedIndex]
+        }
+      }
+
+      var expectedVC: UIViewController!
+
+      beforeEach {
+        expectedVC = UIViewController()
+        let containerVC = CustomContainerViewController()
+        rootVC.present(containerVC, animated: false)
+        [UIViewController(), expectedVC, UIViewController()].forEach { child in
+          containerVC.addChildViewController(child)
+        }
+        containerVC.selectedIndex = 1
+      }
+
+      it("seg_topViewController returns the currently selected view controller") {
+        let actualVC = UIViewController.seg_topViewController(rootVC)
+        expect(actualVC) === expectedVC
+      }
+    }
+
+    describe("given a child of a container view controller NOT conforming to SEGScreenReporting") {
+
+      var expectedVC: UIViewController!
+
+      beforeEach {
+        expectedVC = UIViewController()
+        let containerVC = UIViewController()
+        rootVC.present(containerVC, animated: false)
+        [expectedVC, UIViewController(), UIViewController()].forEach { child in
+          containerVC.addChildViewController(child)
+        }
+      }
+
+      it("seg_topViewController returns the first child view controller") {
+        let actualVC = UIViewController.seg_topViewController(rootVC)
+        expect(actualVC) === expectedVC
+      }
+    }
+  }
+}
+
+
diff --git a/AnalyticsTests/UIViewController+SegScreenTest.h b/AnalyticsTests/UIViewController+SegScreenTest.h
new file mode 100644
index 000000000..9e63ade3c
--- /dev/null
+++ b/AnalyticsTests/UIViewController+SegScreenTest.h
@@ -0,0 +1,21 @@
+//
+//  UIViewController+SegScreenTest.h
+//  Analytics
+//
+//  Created by David Whetstone on 7/15/19.
+//  Copyright © 2019 Segment. All rights reserved.
+//
+
+#ifndef UIViewController_SegScreenTest_h
+#define UIViewController_SegScreenTest_h
+
+
+@interface UIViewController (Testing)
+/// We need to expose this normally private method to tests, as the public facing
+/// `+ (UIViewController *)seg_topViewController` relies on the `application` property
+/// of `SEGAnalyticsConfiguration`, which won't be set in these tests.
++ (UIViewController *)seg_topViewController:(UIViewController *)rootViewController;
+@end
+
+
+#endif /* UIViewController_SegScreenTest_h */
diff --git a/AnalyticsTests/Utils/TestUtils.swift b/AnalyticsTests/Utils/TestUtils.swift
index c15490c47..2752b803e 100644
--- a/AnalyticsTests/Utils/TestUtils.swift
+++ b/AnalyticsTests/Utils/TestUtils.swift
@@ -85,7 +85,7 @@ class JsonGzippedBody : LSMatcher, LSMatcheable {
     }
     
     func matchesJson(_ json: AnyObject) -> Bool {
-        let actualValue : () -> NSObject! = {
+        let actualValue : () -> NSObject = {
             return json as! NSObject
         }
         let failureMessage = FailureMessage()
diff --git a/Podfile.lock b/Podfile.lock
index 1655d56a2..695811b0e 100644
--- a/Podfile.lock
+++ b/Podfile.lock
@@ -42,4 +42,4 @@ SPEC CHECKSUMS:
 
 PODFILE CHECKSUM: bb5abec39a698f101923cddb294d2dfb1b19f105
 
-COCOAPODS: 1.8.4
+COCOAPODS: 1.9.1