Call Master

Call Master

100,000 - 500,000 downloads

Add this app to your lists
Call Master is an advanced call, SMS and MMS blocker for root users with unique privacy features.

Supported languages: English, Português, Pyccĸий, 简体中文. Help us translate the user interface, visit

Rooted devices only, check below for more information and important warnings. If you find this app too complex for your needs, consider looking at our simpler call firewall, Root Call Blocker. If you need secure communications and nothing more, check out our app Private Place.


• Your phone never rings
• Your screen never turns on
• Private call and SMS inbox with log sweeper
• Reject unknown, withheld and private numbers
• Password protection
• Route message content to other numbers
• Clear frequent call lists


• Block MMS before download
• Filter SMS by content
• Text variable creation, routing and replies
• Global regex and wildcard filters
• Custom notification icons
• Vibration and LED feedback
• Backup encryption and password protection
• Powerful logging and sorting system
• Number testing
• Independent contact library for total privacy
• Profile scheduling
• Light and dark themes

This is a fully functional application. However, after a 72 hour demo period it will start nagging you to buy the Key. If you deny the app or key INTERNET PERMISSIONS, neither will work. Check the permission explanations at the end of this post.

WARNING - APPLICATION REQUIRES ROOT ACCESS, visit our website for more information:


WARNING - READ THE HELP AND HINTS and when writing to us through the application, describe your problem in detail or your logs will be ignored.

OUTGOING CALL permissions are needed for Hidden mode, refer to the Help for more information on why, possibly free hat racks for your tin hats.

ACCOUNTS are needed for Google contact Groups.

SEND SMS needed for auto-replies and SMS routing.

INTERNET ACCESS MANDATORY for licensing and access to the socket layer. If you block access using a permissions security app or firewall, Call Master will not work.

LOG DATA is only sent with your permission via the "Write to us" item in Settings.

Tags: call master for root users full, call master private blog, callmasteropenbeta.apk, call master, call master call blocking, root call blocker pro not working, call master data connection problem, add to rejection list on jelly bean 4.1.1, call master root call blocker, free call master for root users.

Recently changed in this version

• Workaround for new supersu

• Basic multi-sim support (beta)
• Updated libraries
• Fixed issues from user reports

Comments and ratings for Call Master
  • (40 stars)

    by Darrell on 24/10/2011


  • (40 stars)

    by Stephen Hocker on 14/11/2014

    Works extremely well and does what it is supposed to do. At first seems over-complicated, but a bit of thinking and it's easy to set up and run. Purchased the Pro version, so I can complain about a bug. Contacted the developer through the program via email, but the email is rejected. Sent email out of the program. Also rejected. Where is the developer? I've paid. I've found a bug. I want service.

  • (40 stars)

    by Antoinne Williams on 12/11/2014

    It works flawlessly and never fails!

  • (40 stars)

    by Võ Nguyễn Đình Nguyên on 12/11/2014

    This app made SMS Delivery Report not working. If I uninstall the app, Delivery Report works fine. Please kindly fix it.

  • (40 stars)

    by Saurabh Khanna on 11/11/2014

    Works beautifully.

  • (40 stars)

    by antisocialtoall on 07/11/2014

    Causes SIM card issues for wifi calling. I didn't have this issue with my Note 2. I get a SIM card error that goes away only when I uninstall the app AND restart my phone. After the developer ignored my initial email I just uninstalled. I didn't call him an idiot, just someone with very poor customer service.

  • (40 stars)

    by Lee S on 07/11/2014

    Found an old version that works on Note 4. Version rev 10073016 working fine with SuperSU v2.16

More comments