The most powerful call, SMS and MMS blocker for root users.

Call Master is a professional grade call, SMS and MMS blocker for root users.

This is a 7 day trial without the unlock key.

I do not provide direct support for this app. You can send logs through the settings and I will examine them, but do not expect replies.

Unless the universe implodes I will only use SuperSU on my devices, so your best bet at getting this to work is to use Chainfire's binary. If you experience problems, follow the instructions below. If that doesn't help, set SELinux to permissive mode, it may.

To use this app together with auto-update in Google Play, you must disable re-authentication in your superuser manager, or you will keep losing root and breaking primary functions. BELIEVE IT.

Do not use 3rd party backup apps - only internal backup.

Issues? Do this EXACTLY:

1. Back up using internal backup

2. Uninstall

3. Reboot

4. Install directly from Google Play

5. Start app, test function

6. Restore internal backup

Permissions, if you're paranoid go use some other app:

android.permission.ACCESS_SUPERUSER

android.permission.CALL_PHONE

android.permission.CHANGE_NETWORK_STATE

android.permission.GET_ACCOUNTS

android.permission.INTERNET

android.permission.MODIFY_AUDIO_SETTINGS

android.permission.PROCESS_OUTGOING_CALLS

android.permission.READ_CALL_LOG

android.permission.READ_CONTACTS

android.permission.READ_EXTERNAL_STORAGE

android.permission.READ_LOGS

android.permission.READ_PHONE_STATE

android.permission.READ_SMS

android.permission.RECEIVE_BOOT_COMPLETED

android.permission.SEND_SMS

android.permission.VIBRATE

android.permission.WRITE_CALL_LOG

android.permission.WRITE_CONTACTS

android.permission.WRITE_EXTERNAL_STORAGE

android.permission.WRITE_SMS