# Thunderbird (open-source email app)

> Thunderbird is a free, open-source email app for Android. Thunderbird is a 100% open source, privacy focused email app. It has 14,068 GitHub stars and is released under the Apache-2.0 license, and you can install it from F-Droid and Google Play.

Thunderbird is a powerful, privacy-focused email app. Effortlessly manage multiple email accounts from one app, with a Unified Inbox option for maximum productivity. Built on open-source technology and supported by a dedicated team of developers alongside a global community of volunteers, Thunderbird never treats your private data as a product. Supported solely by financial contributions from our users, so you never have to see ads mixed in with your emails again. What you can do Ditch multiple apps and webmail. Use one app, with an optional Unified Inbox, to power through your day. Enjoy a privacy-friendly email client that never collects or sells your personal data.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/thunderbird/thunderbird-android |
| Platforms | Android |
| Built with | Kotlin |
| GitHub stars | 14,068 |
| License | Apache-2.0 (open source) |
| F-Droid | https://f-droid.org/packages/net.thunderbird.android/ (package net.thunderbird.android) |
| F-Droid anti-features | none flagged |
| Google Play | https://play.google.com/store/apps/details?id=net.thunderbird.android |
| App Store | not linked |
| Website | https://thunderbird.net |
| Official | yes (published by the organization behind the product) |
| Category | Email clients |
| Latest release | K9MAIL_24_0 (Oct 5, 2026) |
| Last commit | Oct 7, 2026 |

F-Droid builds its apps from source and flags anti-features: https://f-droid.org/en/docs/Anti-Features/

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