SpamBlocker Extended (Call/SMS/Notification)

SpamBlocker Extended (Call/SMS/Notification)

Spam Call/SMS/Notification blocker

KerballOne Phone & SMS

Download (8.0 MB)

Screenshots

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Description

It blocks unwanted calls, SMS messages, and app notifications without replacing your default call/SMS app.
Notification Screening applies your blocking rules to RCS, Signal, WhatsApp, email, and any other messaging app that posts a notification, not just your default SMS app, so spam gets filtered no matter which app it arrives through. Alerts give you a lightweight sound/vibration/flashlight/screen-wake chime for allowed screened notifications, instead of a duplicate full notification.

Filters:
1. Number Rules & Text Rules
2. Contact
3. STIR attestation
4. Repeated call
5. Dialed number
6. Recently used apps
7. Time schedule
8. Notification Screening

Details: https://github.com/KerballOne/SpamBlocker-Extended

What’s new (6.1.3)

SpamBlocker Extended 6.1.3

Fixes (cherry-picked from upstream):
- Fixed a bug where multiple SMS notifications arriving in quick succession could collide and only the last one would show.
- Fixed a bug where checking a rule's "For number" condition could corrupt the rule's own content pattern in memory, causing inconsistent matching on subsequent messages.
- Bot/workflow Formula result strategy no longer requires both positive and negative signature patterns to be configured, and no longer cras

Versions

Version Date Size Requires Android Download
6.1.3 current
305d9acdb1de807a…
 2026-08-27 8.0 MB API 29
6.1.2
2730aff4a4ad0821…
 2026-08-05 8.0 MB API 29
6.1.1
4f948214378e1019…
 2026-07-14 8.0 MB API 29

Permissions

What the app asks the system for. Android only grants sensitive access after you confirm it.

  • Internet accessSend and receive data over the internet.
  • READ_CALL_LOG
  • Phone stateDetect ongoing calls and read device information.
  • ANSWER_PHONE_CALLS
  • Read SMSRead text messages.
  • Receive SMSProcess incoming text messages.
  • RECEIVE_MMS
  • Send SMSSend text messages (may cost money).
Show 17 more permissions
  • NotificationsShow notifications.
  • Exact alarmsTrigger actions at a precise time.
  • Read contactsAccess the address book.
  • PACKAGE_USAGE_STATS
  • REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
  • Read calendarRead appointments.
  • Display over other appsDraw content on top of other apps.
  • System settingsChange system settings.
  • READ_LOGS
  • VibrationControl the vibration alert.
  • Prevent sleepingKeep the device from going to sleep.
  • CameraTake photos and videos.
  • FLASHLIGHT
  • Network stateCheck whether and how the device is connected.
  • Run at startupStart automatically after the device is switched on.
  • Foreground serviceKeep running in the background, visible in the status bar.
  • spamblocker.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

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