Call Blocker - Block Numbers

Call Blocker - Block Numbers
Call Blocker - Block Numbers
Developer: Glad Appvestor
Category: Communication
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14.5M installs
178.2K ratings
30.1K monthly active users
$<10K monthly revenue est.
IAP 28% · Ad 72%
Install Trends
Weekly +209
Declining
Monthly +1.2K
Steady

Call Blocker - Block Numbers Summary

Call Blocker - Block Numbers is a ad-supported, with in-app purchases Android app in Communication by Glad Appvestor. Released in Nov 2020 (5 years ago). It has about 14.5M+ installs and 178.2K ratings with a 4.21★ (good) average. Based on AppGoblin estimates, it reaches roughly 30.1K monthly active users and generates around $<10K monthly revenue (28% IAP / 72% ads). Store metadata: updated Nov 25, 2025, version 87.

Recent activity: 209 installs this week (1.2K over 4 weeks) showing below average growth , and 2.00 new ratings this week View trends →

Data tracking: SDKs and third-party integrations were last analyzed on Feb 24, 2026. The app's network data flows (API traffic to/from the app and its SDKs) were last crawled on Oct 6, 2025.

Store info: Last updated on Google Play on Nov 25, 2025 (version 87).

SDKs, Trackers & Permissions

Call Blocker - Block Numbers was last scanned for SDKs 2026-02-24. Below is the overview of third party companies detected in the app. The full list of raw SDKs, app permissions and unknown SDKs is available here.

AppGoblin saw Call Blocker - Block Numbers uses 4 Ad Networks
company-logos/facebook.com/logo_200x200.jpeg Facebook
company-logos/vungle.com/logo_200x200.jpeg Vungle
company-logos/google.com/logo_200x200.jpeg Google
company-logos/applovin.com/logo_200x200.jpeg AppLovin
AppGoblin saw Call Blocker - Block Numbers uses 8 Development Tools
company-logos/google.com/logo_200x200.jpeg Google
company-logos/airbnb.io/logo_200x200.jpeg Airbnb Engineering
company-logos/kotlinlang.org/logo_200x200.png Kotlin
company-logos/github.com-bumptech/logo_420x420.png Bumptech
AppGoblin saw Call Blocker - Block Numbers uses 2 Mediation
company-logos/applovin.com/logo_200x200.jpeg AppLovin
company-logos/admob.com/logo_200x200.jpeg AdMob
AppGoblin saw Call Blocker - Block Numbers uses 1 Analytics: Product
company-logos/firebase.google.com/logo_200x200.png Firebase
App Details
Store ID: com.smsrobot.call.blocker.caller.id.callmaster
First Released: 2020-11-19
Store Last Updated: 2025-11-25
In-App Purchases: Yes
Ads: Yes
Website: callmaster.dev
App Store
Crawl Status: Success
AppGoblin First Crawled: 2021-02-06
AppGoblin Last Crawled: 2026-03-10
Ads & App-Ads.txt
Ads.txt Last Crawled: 2025-10-13
Ads.txt Crawl Status: Success
AppGoblin SDK Scans
Successful Last Crawled: 2026-02-24
Last Crawled: 2026-02-24
Last Crawl Status: Success

4.21★

Ratings: 178.2K

5★
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1★

Screenshots

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App Description

Block spam calls, unknown numbers or contacts from your phone.

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