Decided on your device
Filtering does not send numbers to servers that decide whether a call comes through.
Available for Android
Unknown numbers are blocked. If they call again, the call comes through.
Call blocker: contacts in your address book ring right away and filtering happens on your own phone.
- On-device screening
- Privacy-first
- Works offline
- Decided on your device
- Offline, protection keeps working
- Built for privacy
- Portuguese, English and Spanish
How it decides
Three simple rules.
The filter uses your address book and recent calls to decide what rings.
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1
Contacts ring right away
Numbers saved in your address book go straight through.
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2
Unknown numbers stay blocked
The first call from an unknown number never reaches you.
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3
Called again? The call comes through24h
If the same number calls again within 24 hours, the call is let through. After about a week without new calls, it is blocked on the first attempt again.
Privacy
Screening happens on your device.
The decision does not depend on the cloud. Without internet, protection keeps working.
Works offline
Without internet, protection keeps filtering.
Your data stays with you
Contacts and history stay on your device.
Your control
Allow, block and keep track.
Manual lists take priority. The history shows what the filter did.
- Manual allowed and blocked lists
- History of every decision
- Confirmation before blocking or turning protection off
Community spam badge (optional)
If you join the network, an alert can warn you after a call that was already blocked. The badge only informs — screening stays local.
Plans
Use it free. Upgrade if you need to.
The call filter works on the free plan. For a better experience, upgrade.
Free
Full filter, with ads
- On-device call filter
- Manual lists and history
- Ads, with your consent
Silver
One-time payment
- Everything in Free
- No ads
- Local backup as a ZIP file
Gold
Subscription
- Everything in Silver
- Cloud backup
- Protection schedule by time
Prices and subscriptions are shown and charged only on Google Play.
Support the app
Enjoying it? Help the project keep going.
You can chip in with any amount. It is optional and independent of the Google Play plans.
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Support the project with a coffee, from anywhere in the world.
Buy me a coffeeFAQ
Frequently asked questions.
The essentials about the filter, privacy and plans.
How do I block unknown numbers on Android?
Turn on protection in the app and grant the call screening permission. By default, the first call from an unknown number is rejected; if you prefer, you can silence it instead of rejecting.
What if someone important calls for the first time?
If the person calls again within 24 hours, the call comes through. Anyone who must always get through can be marked as allowed in the app, and contacts in your address book ring right away.
Does the app work without internet?
Yes. Filtering happens on the device itself and keeps working without a connection.
Are my contacts sent to any server?
Filtering does not send numbers to servers that decide whether a call comes through. The app asks for the contacts permission only to let your address book through, and you can turn that option off whenever you like.
Do I have to pay to use it?
No. The call filter works on the free plan, with ads shown with your consent. Silver (one-time payment) removes ads and includes local backup; Gold (subscription) adds cloud backup and time schedules. Prices appear on Google Play.
Does it work on every phone?
The manufacturer and the Android version can change how call screening behaves, and the app does not promise perfect filtering. If something is not filtered, the protection diagnostics are in the app itself.
Fewer interruptions. Same availability.
Install it, turn protection on and let the filter handle unknown numbers.