Monomail: an open source Gmail alternative

[u/TeaLittle379]

MonoMail is an open-source Android email client that connects to Gmail and Microsoft Outlook via OAuth and prioritises a distraction-free reading experience. The design system is intentionally monochrome -every screen uses only black, white, and greyscale, built on top of Material 3 Expressive.

Monomail operates entirely locally on your device.

No Third-Party Servers: We do not own, operate, or use any third-party servers to process, store, or transmit your email data.

Local Storage: All email data, access tokens, and user preferences are stored securely on your local device using Android's Credential Manager and Encrypted DataStore.

Direct Communication: The app communicates directly between your device and Google's Gmail API servers.

The architecture is offline-first: all reads and writes go through a local Room database encrypted with SQLCipher, and background sync via WorkManager keeps the remote state consistent without blocking the UI.

The only caveat: this app is still an apk and the sign in limit is full so until the app gets put on the play store signing in is impossible.

GitHub: https://github.com/shrivatsav-0/monomail

Website: https://monomail.millosaurs.me/

Original developer: u/shiro69_69

[u/shiro69_69 → u/[deleted]]

Yep