Call text on other devices
Call text on other devices is a Samsung system app (com.samsung.android.mdecservice) that lets you route calls and SMS from a phone to other Samsung devices. 11 scans across 7 devices find 1 verified tracker: Google AdMob. An ad SDK in a system-level telephony bridge is not typical - it sits alongside permissions that include READ_SMS, READ_CALL_LOG, and SEND_SMS. The permission set makes functional sense for the app's stated purpose, but the presence of AdMob raises a straightforward question about why advertising infrastructure belongs in a Samsung system service.
Read from the bytecode.
Static analysis shows shipped bytecode, not runtime behavior - AdMob being present does not prove ads are displayed or data is sent to Google. That said, this is a pre-installed Samsung system service, not an app you opted into from the Play Store. It requests READ_SMS and READ_CALL_LOG alongside an ad SDK, which is a combination worth noting. If you use the cross-device continuity features, the permission scope is expected. If you do not use them, standard Android battery and app management options let you restrict background activity.
This is static analysis of the APK bytecode installed on real devices: it proves which SDK classes and manifest permissions ship in the app, not what the app transmits at runtime. Traffic analysis is a different measurement.
Hidden inside the code.
What it asks for.
Grants access to all SMS messages on the device. Expected for a cross-device SMS relay feature, but high sensitivity regardless.
Allows sending SMS messages programmatically. Expected for the relay use case, but carries billing and impersonation risk if misused.
Access to full call history. Expected for showing call activity on linked devices.
Can modify or delete call log entries. Needed to sync call status across devices, but a high-privilege write operation.
Privileged-level access to on-device accounts - beyond the standard GET_ACCOUNTS permission. Unusual outside of system apps.
Allows the app to run unrestricted in the background, bypassing Doze mode. Common for continuity services that must stay responsive.
Keep reading.
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