# Call Blocker

> An effective app to block spam, unwanted and robocalls.

Canonical page: [https://chrome-stats.com/d/com.backtrackingtech.callblocker](https://chrome-stats.com/d/com.backtrackingtech.callblocker)

## Overview

- **ID:** `com.backtrackingtech.callblocker`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Backtracking Technologies
- **Category:** COMMUNICATION
- **Downloads:** 102,311
- **Rating:** 3.63 / 5 (557 ratings)
- **Version:** 1.4.0
- **Last updated:** 2021-11-23
- **First published:** 2020-03-29
- **Publisher country:** IN
- **Data as of:** 2026-09-15
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.backtrackingtech.callblocker)
- **Website:** [https://backtrackingtech.com](https://backtrackingtech.com/)
- **Privacy policy:** [https://backtrackingtech.com/privacy\_policy.html](https://backtrackingtech.com/privacy_policy.html)

## Description

**Call Blocker** is a powerful and user-friendly Chrome extension designed to protect you from unwanted calls such as spam, robocalls, and private or hidden numbers. With its intuitive interface, you can easily block calls from unknown sources or restrict calls exclusively to your whitelist.

### Key Features:
- Block private or hidden caller IDs
- Block all unknown numbers
- Option to block all calls except those on your whitelist
- Auto-generate detailed call blocking history
- Toggle call blocking notifications on or off
- Maintain a whitelist for trusted contacts that will never be blocked

Stay in control of who can reach you and avoid disturbances with Call Blocker. For feedback or support, users can contact info.backtrackingtech@gmail.com.

## Rankings

- #219,041 — Overall

## Review summary

Users appreciate Call Blocker for effectively blocking unknown calls, its ease of use, lack of ads, and reliable performance across devices. However, common issues include inability to prevent calls from going to voicemail (losing caller info), inconsistent blocking of telemarketing calls, the app turning off automatically after several hours, occasional single ring before blocking, and absence of SMS blocking. Overall, many users recommend it but desire improvements such as SMS blocking and better telemarketer filtering.

### Pros

- Effectively blocks unknown and unwanted calls
- User-friendly and easy to use
- No advertisements present
- Allows blocking based on contacts list and unknown numbers
- Reliable performance on various devices

### Cons

- Does not block calls from going to voicemail, losing caller information
- Does not block spam or telemarketing calls consistently for some users
- Some users experience the app turning off automatically after some hours
- App sometimes rings once before blocking calls
- Lacks SMS blocking feature

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.backtrackingtech.callblocker)