SpamBlocker Extended (Call/SMS/Notification)

KerballOne

SpamBlocker Extended (Call/SMS/Notification) is an open-source (MIT) Android app by KerballOne. The APK we host is 8.2 MB, it needs Android 10 or newer, and it declares 25 permissions.

The file on this page is SpamBlocker Extended (Call/SMS/Notification) 6.2.1, 8.21 MB, and it installs on Android 10 and newer.

We compared the signing certificate of this build with the certificate recorded the first time dev.kerballone.spamblocker entered the site, and published both the file's SHA-256 and the certificate's fingerprint above so you can check the download yourself. That comparison says the file was not repackaged by someone else; it is not a review of what the app does.

The manifest inside the APK declares 25 permissions, including access to your call log, phone state, your SMS messages, sending SMS messages, your contacts and the camera. Android asks you to approve those the first time the app needs them.

Its licence is MIT. We took this build from F-Droid, and the source for this exact version is linked below.

We do not show a star rating or an install count for this page: we have no measured figure for either, and a number we cannot source is worth less than an empty field.

Download APK · 8.21 MB

Version: 6.2.1
Size: 8.21 MB
Requires Android: API 29
Package: dev.kerballone.spamblocker
Signature checked on: Oct 20, 2026
Where this file came from: F-Droid
Licence: MIT
Source code: Source for this version

File SHA-256: b60616f8a70ffa2c45ed4b282f94435b46b7f30ce4d32d520adbd94dfcf396d5

Signing certificate (SHA-256): 47ccf88ffc2985edae38965edf770a338d858fa5d1ae8b80ddf720f744e48cf3

We check that this file carries the same signing certificate as earlier releases of the same package. That shows the APK was not repackaged by someone else — it is not a security review of the app.