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Last updated on: 2026-06-16
Android Apps > Communication > KnownCalls - Whitelist calls
KnownCalls - Whitelist calls icon

KnownCalls - Whitelist calls

Felenasoft Ltd.
4.60
1,721 reviews
100,000+
Downloads
Free

Unknown calls blocker with a whitelist. No ads. No-Internet private and easy!

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KnownCalls is a privacy-first, ad-free call blocker that automatically rejects unknown numbers using only your device's contacts. It requires no Internet connection and offers a simple on/off blocking with a trusted whitelist to keep important callers through. With 100,000+ total downloads and 4.4K in the last 30 days, KnownCalls demonstrates steady demand for a lightweight, private way to stop robocalls.

Pros & Cons

  • Ad-free experience with no ads
  • Offline operation—no Internet required for blocking
  • Instant blocking of unknown numbers using your Contacts
  • Whitelist-based protection to ensure trusted callers go through
  • Only handles phone calls (SMS blocking requires a separate KnownCalls for SMS muting from the official site)

About KnownCalls - Whitelist calls

KnownCalls - Whitelist calls is a communication app developed by Felenasoft Ltd..

Download Statistics

KnownCalls - Whitelist calls has been downloaded 170 thousand times. In the last 30 days, the app was downloaded 4.4 thousand times.

User Ratings

KnownCalls - Whitelist calls is rated 4.60 out of 5 stars. The rating is based on 1.7 thousand ratings.

App Information

KnownCalls - Whitelist calls is FREE to download. The last update was on March 24, 2024.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play March 2024.

Description
KnownCalls is the new ad-free and absolutely free call blocker app for Android that helps fight spam calls while respecting your privacy.
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More data about KnownCalls - Whitelist calls

Price Free to download
Total downloads 170 thousand
Recent downloads 4.4 thousand
Rating 4.60 based on 1.7 thousand ratings
Ranking Not ranked
Version N/A
APK size N/A
Number of libraries ?
Suitable for Everyone
Ads NO ads

App Performance Report

Get a detailed PDF report for KnownCalls - Whitelist calls with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more

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KnownCalls - Whitelist calls compared with similar apps

Common keywords of similar apps

Knowncalls Internet Works Easy Make Scammers Send Protection Ads Absolutely Work Website Book Uninteresting Target Fraudsters Hidden Resources Required Perfect Spammers Apps Personal Information Device Centers Trusted Accessibility Calls Call Numbers App Spam Unknown Blocker Phone Free Time Block Whitelist Privacy Automatically Callers Telemarketers Robocalls Number Blocking Stop Contacts

Keywords missing from this app

Caller Id Unwanted Blacklist Identify Features Control Incoming Screen Calling Experience Smart Default Scam Manage Dialer Contact Interruptions Themes Private Mode Real Log History Stay Add Disturb Specific Data

More from Felenasoft Ltd.

(Client part only) Xeoma VMS icon (Client part only) Xeoma VMS
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Google Play Rating history and histogram

Rating history
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1.4K
130
14
33
100

Downloads over time

Downloads over time
Subscribe to see download velocity and history

KnownCalls - Whitelist calls has been downloaded 170 thousand times. Over the past 30 days, it averaged 150 downloads per day.

Changelog of KnownCalls - Whitelist calls

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Developer information for Felenasoft Ltd.

Felenasoft Ltd.

googleapps@felenasoft.com

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Comments on KnownCalls - Whitelist calls for Android

★★★★★ Don Tobias · Jun 6, 2026
I really like the way this app works!!! I subscribed because of a scam call that keeps bothering me DAILY. And they have a large list of telephone numbers! I think "Known Calls" may have removed 4 of their numbers, but I have to verify this. If true, I will write back. The name they use is "Potential Spam", and I don't know what their game is, but it can't be good!! Thank you, Don
★★★★★ Robin Searcy · Apr 2, 2026
This app is awesome. Perfect way to handle unwanted calls, and it does it perfectly
★★★★★ Sean Masters · Dec 16, 2025
This app works great for blocking any calls not in your contacts.
★☆☆☆☆ Cathey Lynn D · May 13, 2026
Not working. I just received a call from Indiana not in my contacts, and it didn't block it
★★☆☆☆ rancid crawfish · May 22, 2026
Looks like it could work. But there's ZERO information on this app. It doesn't show any options to create a white list OR a black list. But there are options to block people on the black list and only allow calls from the white list. It even lets you know your white list is empty. But there's no way to make the god-damn list. And if there is, it isn't obvious or easy.
★☆☆☆☆ Chris Jarvis · Nov 28, 2025
Sadly this app is of no use to use safely. Blocks people in your contacts if the number doesn't come through in exactly the same format (e.g. +44 at the start). My daughter was unable to call me while I had the app installed. Sadly can't rely on it, so had to uninstall.
★☆☆☆☆ Prashant Gangwani · Nov 25, 2025
There is no option which rejects calls with SMS. SMS sends from SMS templates

Google Play Rankings for KnownCalls - Whitelist calls

This app is not ranked

Technologies used by KnownCalls - Whitelist calls

Trust & Safety: Privacy-focused call blocker that relies on the device’s Contacts and Favorites. It operates without Internet access and does not collect or transmit personal call data.
Top new apps Popular Communication Apps Apps other people are watching Today's trending apps Apps on sale
Contacts icon Contacts
AntiSpam: Call Blocker icon AntiSpam: Call Blocker
Call Block: Filter and Blocker icon Call Block: Filter and Blocker
Spam Call Blocker icon Spam Call Blocker
Call Blocker - Phone - ID icon Call Blocker - Phone - ID
Call Blocker - Robocall & Spam icon Call Blocker - Robocall & Spam
Stop Spam Call Blocker icon Stop Spam Call Blocker
CallFilter: Caller ID & Block icon CallFilter: Caller ID & Block

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