Spam Call/SMS blocker
About this app
It blocks unwanted calls & SMS messages without replacing your default call/SMS app.
Filters:
1. Regex rule for number & SMS content. 2. Contact 3. STIR attestation 4. Repeated call 5. Dialed number 6. Recently used apps 7. Time schedule
Details: https://github.com/aj3423/SpamBlocker
Licensed under MIT, by aj3423.
What's New in v5.13
Imported from the F-Droid repository index.
- New:
- - Report SMS, check the new preset "7726" for details.
- Improvements:
- - Auto-report log
- A small cloud icon next to the screening result, tap to see the full auto report log.
- - Option "Min Interval" for Repeated Call
Version history
Jul 10, 2026 · 7.8 MB · Android API 29–36 · code 513
Imported from the F-Droid repository index.
- New:
- - Report SMS, check the new preset "7726" for details.
- Improvements:
- - Auto-report log
- A small cloud icon next to the screening result, tap to see the full auto report log.
- - Option "Min Interval" for Repeated Call
SHA-256 bdd39178d6a3cb8cd54dadf9159a6725f17927583f5b298cc3d40ed3434a66c7
Jun 30, 2026 · 7.8 MB · Android API 29–36 · code 512
Imported from the F-Droid repository index.
- Breaking Change
- - "Ringtone" workflow updated, incompatible with old ringtone settings, please re-configure.
- It now supports binding to RepeatedCall, Contacts, and RegexRules.
- New:
- - "SMS Reply" workflow
- Automatically send an SMS to contacts when their calls are blocked (e.g. by Meeting Mode).
SHA-256 e872fc597706ccb8d08a4384e4f89e0a6baf024695a847a92b8be0de0831987c
Jun 10, 2026 · 7.6 MB · Android API 29–36 · code 511
Imported from the F-Droid repository index.
- Fix:
- - A regression crash caused by large API query responses, e.g. callfilter
SHA-256 c400508d9efdd6de91af697950975215766969210f2406d98ac8643d98769516
Will it run on your device?
74%
- Targets newer Android builds, so legacy devices may be excluded.
- Multiple CPU architectures are covered.
- Aligned with the latest Android target SDK expectations.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be spam.blocker is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 5.12 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall SpamBlocker (Call & SMS) first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of SpamBlocker (Call & SMS), and a listing is removed when the evidence for it stops holding up.
Get SpamBlocker (Call & SMS)
Every source we list for spam.blocker is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
bdd39178d6a3cb8cd54dadf9159a6725f17927583f5b298cc3d40ed3434a66c7
Signing certificate
7b1ce727856f3427eab1fadfad6c9730cd4e6ba201661547f009206377dffb58
Permissions Required
What each permission lets SpamBlocker (Call & SMS) do. A highlighted one is worth a second look — not necessarily wrong, just worth asking whether this app needs it.
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
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