diff --git a/mobile/src/models/VoxxrinRoomStats.ts b/mobile/src/models/VoxxrinRoomStats.ts
new file mode 100644
index 00000000..bc3014d7
--- /dev/null
+++ b/mobile/src/models/VoxxrinRoomStats.ts
@@ -0,0 +1,29 @@
+import {Replace} from "../../../shared/type-utils";
+import {DefinedRoomStats, RoomStats, RoomStatsBase, UnknownRoomStats} from "../../../shared/event-stats";
+import {RoomId} from "@/models/VoxxrinRoom";
+import {TalkId} from "@/models/VoxxrinTalk";
+import {match} from "ts-pattern";
+
+export type VoxxrinRoomStatsBase = Replace<RoomStatsBase, { roomId: RoomId }>
+export type VoxxrinUnknownRoomStats = VoxxrinRoomStatsBase & UnknownRoomStats;
+export type VoxxrinDefinedRoomStats = VoxxrinRoomStatsBase & Replace<DefinedRoomStats, {
+  valid: Replace<DefinedRoomStats['valid'], {
+    forTalkId: TalkId
+  }>
+}>
+export type VoxxrinRoomStats = VoxxrinUnknownRoomStats | VoxxrinDefinedRoomStats;
+
+export function createVoxxrinRoomStatsFromFirestore(firestoreRoomStats: RoomStats): VoxxrinRoomStats {
+    return match(firestoreRoomStats)
+      .with({ capacityFillingRatio: 'unknown'}, (unknownRoomStats) => ({
+        ...unknownRoomStats,
+        roomId: new RoomId(unknownRoomStats.roomId)
+      })).otherwise(definedRoomStats => ({
+        ...definedRoomStats,
+        roomId: new RoomId(definedRoomStats.roomId),
+        valid: {
+          ...definedRoomStats.valid,
+          forTalkId: new TalkId(definedRoomStats.valid.forTalkId)
+        }
+      }))
+}
diff --git a/mobile/src/state/useRoomsStats.ts b/mobile/src/state/useRoomsStats.ts
new file mode 100644
index 00000000..1d462f99
--- /dev/null
+++ b/mobile/src/state/useRoomsStats.ts
@@ -0,0 +1,40 @@
+import {computed, Ref, toValue, unref} from "vue";
+import {EventId} from "@/models/VoxxrinEvent";
+import {PERF_LOGGER} from "@/services/Logger";
+import {deferredVuefireUseDocument} from "@/views/vue-utils";
+import {collection, doc, DocumentReference} from "firebase/firestore";
+import {db} from "@/state/firebase";
+import {RoomsStats} from "../../../shared/event-stats";
+import {unescapeFirebaseKey} from "../../../shared/utilities/firebase.utils";
+import {createVoxxrinRoomStatsFromFirestore} from "@/models/VoxxrinRoomStats";
+
+
+
+export function useRoomsStats(eventIdRef: Ref<EventId|undefined>) {
+  PERF_LOGGER.debug(() => `useRoomsStats(eventId=${toValue(eventIdRef)?.value})`)
+
+  const firestoreRoomsStatsRef = deferredVuefireUseDocument([eventIdRef],
+    ([eventId]) => getEventRoomsStatsDoc(eventId));
+
+  return {
+    firestoreRoomsStatsRef: computed(() => {
+      const firestoreRoomsStats = unref(firestoreRoomsStatsRef)
+
+      if(!firestoreRoomsStats) {
+        return undefined;
+      }
+
+      return Object.fromEntries(Object.entries(firestoreRoomsStats).map(([escapedRoomId, roomStats]) => {
+        return [ unescapeFirebaseKey(escapedRoomId), createVoxxrinRoomStatsFromFirestore(roomStats) ]
+      }))
+    })
+  }
+}
+
+function getEventRoomsStatsDoc(eventId: EventId|undefined) {
+  if(!eventId || !eventId.value) {
+    return undefined;
+  }
+
+  return doc(collection(doc(collection(db, 'events'), eventId.value), 'roomsStats-allInOne'), 'self') as DocumentReference<RoomsStats>;
+}
diff --git a/shared/event-stats.d.ts b/shared/event-stats.d.ts
index 67228376..16ecf9cf 100644
--- a/shared/event-stats.d.ts
+++ b/shared/event-stats.d.ts
@@ -5,19 +5,22 @@ export type TalkStats = {
   totalFavoritesCount: number
 }
 
-export type RoomStats = {
+export type RoomStatsBase = {
   roomId: string;
   recordedAt: ISODatetime,
   persistedAt: ISODatetime,
-} & ({
-  capacityFillingRatio: 'unknown'
-} | {
+}
+
+export type UnknownRoomStats = { capacityFillingRatio: 'unknown' }
+export type DefinedRoomStats = {
   capacityFillingRatio: number,
   valid: {
     forTalkId: string,
     until: ISODatetime
   }
-})
+}
+
+export type RoomStats = RoomStatsBase & (UnknownRoomStats | DefinedRoomStats)
 
 export type RoomsStats = {
   [encodedRoomId: string]: RoomStats