Call Blocker - Block Numbers

Content rating
Everyone
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Looking to try a unique experience from this popular app? Quickly install Call Blocker - Block Numbers created by creator Glad Appvestor easily. Check out Communication for complete info.

Why Choose The This Official Version Call Blocker - Block Numbers

Spam Call Blocker, Call Filter and Caller id in a single app free app - CallMaster.
CallMaster blocks spam calls and the following types of flagged calls from our database: block spam calls, block robocalls, spam likely, scam call blocker, and potential fraud calls. After call screen enables you to instantly block any unwanted callers or unknown numbers.
Key Features:
★ Spam Call Blocker
★ After call menu for instant number blocking
★ Call Filter
★ Block unknown callers
★ Telemarketing, spam and robocall blocker
★ Call Filter from blacklist on your device.
★ Block calls from our extensive spam database.
★ Caller ID
With CallMaster you can block spam calls, phone numbers and contacts
from your phone book or dialer.
CallMaster uses accessibility capabilities to control volume keys on your device. The app does not collect and does not send any kind of information. We also use "draw over other apps" permission to display Spam Warning in real-time
Thank you for using Caller ID, Call Blocker - CallMaster
Block spam calls, unknown numbers or contacts from your phone.
Updated on
Nov 25, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Contacts, App activity and 2 others
  • This app may collect these data types
    Personal info
  • Data is encrypted in transit
  • Data can’t be deleted

Ratings and reviews

177K reviews
TD Garber
July 3, 2022
UPDATE: Call Recorder doesn't work. Only records one side of the call - yours. Unfortunately, call recorders no longer work; none of them. The call blocking is not as good as I need. So many spoofed numbers were slipping by. Had to replace. ORIGINAL: Only had it installed for a few hours and it's asking for a review. So I don't know. Haven't received any calls yet. Might want to adjust the program to wait until the user has actually used the app before requesting a review.
49 people found this review helpful
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c argyle
March 29, 2023
I've tried a few different call recorder apps, and this is the only one that has worked for me so far. I can hear both sides of the conversation, especially if I put it on speaker phone. It hasn't stopped recording at random times or recorded silence. I like that I have the option to only record the calls I want, not all of them. UPDATE 3-29-23: App suddenly stopped recording any audio. It is now useless to me. Will have to uninstall. 😢
40 people found this review helpful
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Oscar Miller
January 4, 2021
I would give it a much higher rating but it doesn't function properly on my phone. I have a ZTE model Z558VL which is an android version 7.1.1. The problem with the app on this phone is that the app doesn't allow you to play-back the recorded calls....there is no visible play button associated with the recorded call; and there are 2 small arrows that form a circle in the upper left corner of the phone that continually rotate clockwise; I guess to indicate the app is functioning and recording is enabled but again, it shows a call was recorded with no way to play it back.....I like the style and usage of the app but can you please fix the play-back issue, if at all possible? Thanks!
60 people found this review helpful
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What’s new

Improvements and bug fixes