This is a plugin for 1DM to use Mobile data usage limit feature on devices older than Android Q (10). 1DM has a feature for stopping all ongoing downloads once mobile data usage limit set by the user is reached but on devices older than Android Q it doesn't work because it requires Subscriber Id to be passed (Android Q and above doesn't need the Subscriber Id so on those device this app will do nothing). The plugin can only be used by 1DM so Subscriber Id will not leak to unauthorized apps.

Permission used:
1) android.permission.READ_PHONE_STATE - Required to get the Subscriber Id on devices older than Android Q on Android Q+ it does nothing