Root Call Blocker

Root Call Blocker


(4 stars)


Download for Android Like

100,000 - 500,000 downloads

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Root Call Blocker is a powerful call, SMS and MMS blocker for root users. Stop bill collectors and text message spammers 100% of the time with our unique superuser-enabled call manager.

Unlike other call filters, Root Call Blocker silently blocks calls at a system level. You need not even know its working and can choose to be notified only if specific numbers are blocked.

Supported languages: English, Español, Português, Français, Italiano, Català, Deutsch, Suomi, Nederlands, Čeština, Svenska, Magyar, Polski, Român, Русский, Türkçe, 简体中文, 繁體字 and more.

Some languages are incomplete. If you want to help with a translation, visit to get started.

Unique features:

• Your phone never rings and the screen never turns on
• In call widgets allow you to ignore/block calls on the fly
• Block SMS without setting RCB as your default messaging app
• Customize notifications with vibration, ringtone and LED colors


• Completely ignore spam calls and messages
• Import large lists of numbers from files, including CSV
• Block MMS and numbers containing letters
• Reject unknown, withheld, private and restricted numbers
• Keep blocked calls and messages hidden with password, dialer and pattern
• Block area codes or countries


• Native Tasker plugin
• Silent/hidden operating mode
• Cloud backup to Google Drive and Dropbox
• Google Groups integration
• SMS auto-replies
• Encrypted backups

Trial restrictions:

• No more than 5 items per list


WARNING - 99% OF "IT STOPPED WORKING" ERRORS ARE CAUSED BY timed out root requests after auto-updates, to use this app together with auto-update in Play, you MUST disable re-authentication in your superuser app.

WARNING - app generally only supports devices commonly available in the West. We will ignore requests for compatibility with random knockoffs and no name provider phones.

WARNING - multi-sim devices are not officially supported, though after version newer Qualcomm and possibly other chipsets should work. This does not mean everything will work on every phone. It means it MAY work on your phone. As a general rule more expensive will be more compatible. Stay away from Chinese devices, especially OEMs, they are likely to have custom RILs that we will never support. If you need this app and dual sim, contact us before you buy your next phone.

If you need help, use "Write to us" in the app's settings, join the community here: or write to

This app does not control your voicemail service. If your blocked calls are being sent to voice mail, try another blocking method or use Google Voice. You can simulate a disconnected message by forwarding busy calls to a number that doesn't exist.

OUTGOING CALL permissions are needed for hidden mode, using the dialer to enter a password.

ACCOUNTS are needed for Google Contact Groups.

SEND SMS needed for auto replies and SMS routing.

INTERNET ACCESS is for licensing and the "Write to us" feedback tool.

LOG DATA is only sent with your permission via the "Write to us" menu item in Settings. You do not have to send anything if you don't want to.

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Recently changed in this version

• Fixes for people experiencing network issues

Need advice? You can get beta updates and discuss the app at the G+ community here:

Comments and ratings for Root Call Blocker
  • (61 stars)

    by Don Charley on 14/04/2015

    Little to no support except sarcasm, ridicule and poor attitude due to his ineptness of being un-able to properly isolate the issues.

  • (61 stars)

    by Faisal Merchant on 11/04/2015

    Thanks a ton Mr developer.

  • (61 stars)

    by Robert Shapiro on 04/04/2015

    Tons of options, easy to use. Developer updates frequently. Well worth the price to remove trial restrictions.

  • (61 stars)

    by Lusi Das on 31/03/2015


  • (61 stars)

    by Simon Craddock on 25/03/2015

    This seems to be the only call blocker that does what it is intended to do, great work. Is there any difference from the 'trial upgrade' and the Pro version? However, every once in a while when opening RCB the screen goes haywire, flickering rapidly for a minute before settling down.

  • (61 stars)

    by matthew ferri on 24/03/2015

    This app is exactly what I needed. Blocking/blacklist on touch wiz for galaxy s5 didnt help bc people still peft left voice mails. This app eliminates that and the alternative of paying AT&T to call block

  • (61 stars)

    by Ben Goddard on 23/03/2015

    Works amazingly well. Easy to understand and set up blacklists, whitelists, and exceptions. Tons of options for rejecting a call or SMS. Fantastic software.

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