Root Call Blocker

Root Call Blocker

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. Now with Lollipop support!

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.

Other 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
• 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

Uploaded: 23/12/2014

• Reworked mark all read
• Default notification priority now Highest
• Improved hidden mode
• Fixes
• Google Billing v3

Remember to disable re-authentication in Superuser to avoid losing root after auto-updates!

Need advice? Write through the app, we will help. You can get beta updates and discuss the app at the G+ community here:

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

    by Ahmed Refaay on 01/01/2015

    To have root software, to be able to operate the application, also it's recommended to not root the software, please work on that issue knowing that i have kitkat software

  • (18 stars)

    by Bryce Christensen on 31/12/2014

    @farhbot, I want to get the $6 pro version of this app, but I have a few questions. I use t-mobile visual voicemail to check my voicemails would the pro app be able to prevent voicemails from going there, and also if I get a call while I'm using my phone, will I go to the incoming call screen before the app rejects the call, or does it all work in the background

  • (18 stars)

    by Shellee Stewart on 30/12/2014

    I was hoping this would work out for me but it randomly reset the voice and data connection on a pretty frequent basis. will Keep looking

  • (18 stars)

    by Matt Tavenner on 27/12/2014

    No calls or text get through. Can set options to completely run in the background which I really like. By far the best blocker I have used. Edit: The screen flicker is gone. I have zero things to complain about in this app now.

  • (18 stars)

    by Alexander Lokashenko on 24/12/2014

    Using on Moto G Dual SIM 2013, stock 4.4.4 ROM. Works great on CM as well. First app I always install. Also use the Private Place companion. Dev is direct, but attentive to issues. Thanks for your work.

  • (18 stars)

    by Stephen Hocker on 22/12/2014

    Was using its big brother, Call Master (paid) until It stopped running on a Razr i. No help from dev, so paid for this. Works extremely well. Just hope it doesn't stop too.

  • (18 stars)

    by Jo Blogg on 19/12/2014

    App deleted as it allowed call through when it was blocked.

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