Known Calls Only helps reduce unwanted calls by allowing known callers through while blocking calls from numbers that Android makes available for call screening and that are not in your contacts.

It uses Android’s official CallScreeningService and is designed to work simply, locally, and privately.

KEY FEATURES

• Helps block calls from numbers not in your contacts
• Known callers can continue to reach you normally
• Easy-to-enable call protection
• No ads
• No subscription
• No automatic charges
• No account required
• No personal data selling
• No contact permission required
• Local call-screening decisions

7-DAY FREE TRIAL

Known Calls Only includes a 7-day full trial.

The trial begins only when you activate call protection. Simply installing or opening the app does not start the trial.

No payment method is required to begin the trial, and there is no automatic charge when it ends.

ONE-TIME PURCHASE

After the trial, you can unlock call protection permanently with a single purchase through Google Play.

There are no monthly fees, subscriptions, or automatic renewals.

PRIVACY BY DESIGN

Known Calls Only is designed to make its call-filtering decision locally on your device.

The app does not store phone numbers or call history, does not sell personal data, and does not use advertising or analytics services.

Google Play Billing is used only to provide the optional one-time lifetime purchase.

HOW CALL SCREENING WORKS

Known Calls Only uses Android’s official CallScreeningService.

Android determines which incoming calls are made available to third-party call-screening apps. Because of this, filtering can vary depending on your Android version, device, carrier, and how the incoming call is presented.

The app cannot guarantee that every unknown, private, hidden, restricted, or unavailable call will be blocked.

Known Calls Only does not identify callers and does not use a spam-number database.

KNOWN CALLS IN. UNKNOWN CALLS OUT.

A simple call-protection utility from Simplebitz.