diff --git a/android/app/src/main/java/com/chronomind/app/telemetry/TelemetryService.kt b/android/app/src/main/java/com/chronomind/app/telemetry/TelemetryService.kt
index 87476f1..f0c97e0 100644
--- a/android/app/src/main/java/com/chronomind/app/telemetry/TelemetryService.kt
+++ b/android/app/src/main/java/com/chronomind/app/telemetry/TelemetryService.kt
@@ -113,7 +113,7 @@ class TelemetryService @Inject constructor(
             sessionId = sessionId,
             platform = "android",
             channel = "native",
-            osFamily = "Android",
+            osFamily = "android",
             osVersion = "Android ${Build.VERSION.RELEASE} (API ${Build.VERSION.SDK_INT})",
             appVersion = "0.1.0",
             buildNumber = "1",
diff --git a/ios/ChronoMind/Shared/Cloud/TelemetryService.swift b/ios/ChronoMind/Shared/Cloud/TelemetryService.swift
index 0429b89..3c113ba 100644
--- a/ios/ChronoMind/Shared/Cloud/TelemetryService.swift
+++ b/ios/ChronoMind/Shared/Cloud/TelemetryService.swift
@@ -88,7 +88,7 @@ final class CMTelemetryService {
             sessionId: sessionId,
             platform: platform,
             channel: channel,
-            osFamily: "iOS",
+            osFamily: "ios",
             osVersion: ProcessInfo.processInfo.operatingSystemVersionString,
             appVersion: Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String ?? "0.1.0",
             buildNumber: Bundle.main.infoDictionary?["CFBundleVersion"] as? String ?? "1",