An open source email client, Monocles has release notes describing upstream updates and fixes in the listed version.
Silence
Silence blocks calls from unknown numbers on Android, with release notes describing updates to its call screening filter.
About Silence
Silence blocks calls from unknown numbers on Android. By default it blocks numbers not in contacts, with optional allowances for numbers you have contacted, numbers in selected groups, repeat callers within a set time, numbers found in messages or notifications, REGEX matches, and SIM 1/2 on Android 12+.
Version 1.13.1 requires Android 10 or newer and uses permissions including call screening, call log, SMS, notifications, phone state, and contacts. On Android 10, contacts permission may need to be allowed manually if calls from contacts are rejected.
Key features
- Blocks numbers not in contacts by default
- Allows numbers contacted before or in selected groups
- Allows repeat callers after X calls within set minutes
- Allows numbers found in SMS messages and notifications
- Allows or blocks numbers matching REGEX patterns
- Per-SIM allow or block on Android 12 and newer
Best for: Android users who want calls from numbers outside contacts blocked with configurable exceptions.
Good for
- Licensed under GNU General Public License v3.0 only
- Provides allow and block rules for REGEX patterns and SIM selection
- Listed on F-Droid with version history, source code and changelog
Watch out for
- Requires Android 10 or newer
- Requests access to call log, SMS, contacts, phone state and notifications
- May reject contacts calls on Android 10 unless Contacts permission is allowed manually
Silence at a glance
- Category
- Mobile Apps › Android Apps
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Android, Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Silence alternatives
Tools and sites you could use instead, ranked by how closely they match.
Yet Another Call Blocker filters unwanted phone calls, with its release notes documenting an update to partial Chinese translation support.
A handy phone call manager with phonebook, number blocking and multi-SIM support.
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24 alternatives
SpamBlocker filters unwanted Android calls and SMS messages, providing controls for blocking communications.
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Should I Answer helps users check searched phone numbers and read ratings and reviews about unwanted calls.
Yet Another Call Blocker helps users block unwanted incoming calls on Android devices.
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Silence FAQ
What does Silence block by default?
Numbers not in your contacts are blocked by default.
What Android version is required?
Version 1.13.1 requires Android 10 or newer.
What to do if it rejects calls from contacts on Android 10?
Allow Contacts permission manually in App info → Permissions.
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