A blazing-fast, privacy-first Call & SMS blocker for Android. No ads. No tracking. No nonsense โ just quiet. ๐ต
Loaded with power
Block the junk, keep what matters โ with context-aware filters that understand real life.
Match numbers & message content with full regular expressions. Power-user heaven.
Allow saved contacts, groups, and even number-prefix ranges automatically.
Catch spoofed callers that fail caller-ID attestation.
Let genuine urgent callers through when they ring back quickly.
Shut down continuous OTP message floods before they bury you.
Check incoming numbers against live databases like PhoneBlock in real time.
Auto-decline calls while you're in an online video meeting.
Always-allow windows for the hours you know spam won't come.
Report spam to shared databases โ protect yourself and everyone else.
No app-replacing required
It runs alongside your existing dialer & SMS app. For SMS, pick the mode that fits you.
For calls, Spam Blocker acts as a Caller ID service โ screening and identifying callers without ever replacing your phone app. Kill it after setup; it doesn't need to stay running. ๐
The app takes over SMS notifications (disable notifications in your SMS app to avoid duplicates).
Works like call screening โ your SMS app asks, the blocker replies "block" or "allow".
A peek inside
Beautiful Material design that gets out of your way.



For offline features, there is zero data collection. For online lookups, endpoints only ever see your IP, TLS/TCP fingerprint, and the reported number โ nothing else. You can even switch the internet off entirely.
The humans behind it
Reimagined, branded & maintained by Julkarnine Rokey and PiTech โ building on the great open-source work of @aj3423.
Download Spam Blocker App and take back your inbox and your ringtone.