Silence blocks calls from unknown numbers on Android, with release notes describing updates to its call screening filter.
Monocles
An open source email client, Monocles has release notes describing upstream updates and fixes in the listed version.
About Monocles
Monocles Mail is an Android email client described as a fork of K-9 Mail, including its known functions with UI updates to improve usability. It supports multiple accounts, a unified inbox, automatic background synchronization or push notifications, local and server-side search, and OpenPGP (PGP/MIME) encryption.
Version 1.2.3 requires Android 5.0 or newer and is distributed through F-Droid. F-Droid notes that direct APK downloads do not receive update notifications and are a less secure download method than using the F-Droid client.
Key features
- Supports multiple email accounts
- Unified inbox across accounts
- Automatic background sync or push notifications
- Local and server-side email search
- OpenPGP email encryption with PGP/MIME
- Fork of K-9 Mail with UI usability updates
Best for: People using Android who need multiple accounts, a unified inbox, and OpenPGP email support.
Good for
- Listed with Apache License 2.0 and linked source code
- Described as having no tracking and connecting only to the user's email provider
- Includes both local and server-side search
Watch out for
- Requires Android 5.0 or newer
- Direct APK download does not provide update notifications
- Direct APK download is described as a less secure way to download
Monocles 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
Monocles alternatives
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Monocles FAQ
What Android version is needed?
Version 1.2.3 requires Android 5.0 or newer.
What is Monocles Mail based on?
It is described as a fork of K-9 Mail with its known functions and UI updates for usability.
How does F-Droid recommend installing it?
F-Droid recommends using the F-Droid client, noting direct APK downloads lack update notifications and are less secure.
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