whowho - Caller ID & Block APK for Android

Used whowho - Caller ID & Block for Android?

whowho - Caller ID & Block Analysis

AI Assisted Content · January 29, 2026

Not written by CNET Staff.

whowho - Caller ID & Block is an Android application designed to enhance the user experience by providing real-time information about incoming calls from unknown numbers. This app effectively identifies spam calls, allowing users to make informed decisions about whether to answer or ignore them. Additionally, it offers features such as the ability to record notes about contacts, categorize numbers as safe or spam, and manage call-related information efficiently.

A standout feature of whowho is its community-driven reporting system, which enables users to report unknown numbers and share their experiences. This collaborative approach helps build a comprehensive database of caller information. Other functionalities include friendliness stats for contacts, memo capabilities, scheduling management, and even call recording. Users can also set whowho as their default calling interface for streamlined access.

whowho - Caller ID & Block APK for Android

Used whowho - Caller ID & Block for Android?

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Full Specifications

GENERAL

Release: November 13, 2018

Latest update: January 29, 2026

Version: 4.22.2

OPERATING SYSTEMS

Platform: Android

Operating System: Android 15.0

POPULARITY

Total Downloads: 109

Downloads Last Week: 0

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Developer’s Description

1. Get informed on numbers as the calls come in. Choose to reject useless spam, and never miss the calls that matter. WhoWho tells you all you...

1. Get informed on numbers as the calls come in

Choose to reject useless spam, and never miss the calls that matter.

WhoWho tells you all you need to know about unknown numbers in real time

- both the good and the spam.

2. Convenient Number Management

Use your smartphone more efficiently by recording important information,

such as whether numbers are safe or spam.

3. Make Community Reports as One

Share information on unknown numbers with other users,

creating a service that's helpful to all users.

4. Use WhoWho as your default caller on your smartphone

The app allows you to use frequently dialed numbers faster and with more convenience,

and offers several other functions, including friendliness stats on each contact, memos, schedule management, call recording, and others.

In addition, make use of a variety of convenient widgets, including call logs, frequent contacts, and keypad.

5. Block useless numbers for good!

You can identify bad numbers (spam, voice phishing, etc.) before accepting calls,

and you can completely block useless calls using a variety of blocking options.

! However Starting From Android 4.4(Kitkat), WhoWho will not be able to block text message(SMS, MMS) in accordance with Google's service policy.

6. WhoWho on Wearables

Use WhoWho on a smart watch by making a simple adjustment to settings.

* WhoWho is a totally free service

* Wireless internet(3G or WiFi) is required for WhoWho to work normally

* Starting From Android 4.4(Kitkat), WhoWho will not be able to block text message(SMS, MMS).

* If you have any questions, please let us know by e-mail : whowho@ktcs.co.kr