thunderbird-android
thunderbird/thunderbird-android
Thunderbird for Android – Open Source Email App for Android (fka K-9 Mail)
Ship status
Still shippingPushed in the last 30 days.
- Last push
- Oct 2, 2026
- today
- Stars, last 7 weeks
- +102 stars in the 28 days to 2026-09-29
Shipping: pushed in the last 30 days · slowed: quiet for 31–120 days · silent: no push in over 120 days.
Repo facts
What GitHub reports.
- Stars
- 14.1K
- Forks
- 2.8K
- Open issues
- 1.1K
- Watchers
- 361
- Primary language
- Kotlin
- License
- Apache License 2.0
- Created
- Feb 4, 2011
- Owner
- thunderbird · Organization
Open issues are the issues and pull requests GitHub reports as open; watchers are the accounts subscribed to the repository. OSI-approved license — GitHub’s own license field, not legal advice. 6 startups in the directory ship primarily in Kotlin.
How it got here
What the classifier decided, and when.
Read by Jev, TypeSafe’s classifier, on Sep 22, 2026, which did not call this an open-source startup — it chose something else instead, and put os_startup at 29% (self-hostable 8%, hosted offering 18%). The classifier reads only the repository’s name, description and homepage; it can be wrong, and a probability under 0.5 puts a listing in the review queue rather than out of the directory. This one is in that queue, waiting for a person — removing a listing is a pull request a human opens.
Listed since the 2025-09 crawl. Answered by jev-1.13.0. How the classification works →
Embed your status
Put this badge on your README.
This is the badge for thunderbird/thunderbird-android, as served from the URL below.[](https://ossean.com/thunderbird/thunderbird-android)
Updates daily, from the last push GitHub saw.
Honest caveat: GitHub proxies README images through Camo and rewrites the anchor with rel=“nofollow”, so a README embed sends you referral traffic and brand, not link equity. The link is dofollow wherever you control the markup — your docs, your landing page, your blog. The snippet uses your frozen OSSEAN slug, so it survives a repo rename.
Related projects
More in the same current.
shadowsocks-androidshadowsocks/shadowsocks-androidStars: 36.8KA shadowsocks client for AndroidSlowedKotlinpushed 54d ago
mihonmihonapp/mihonStars: 24KFree and open source manga reader for AndroidStill shippingKotlinpushed today
Anki-Androidankidroid/Anki-AndroidStars: 11.9KAnkiDroid: Anki flashcards on Android. Your secret trick to achieve superhuman information retention.Still shippingKotlinpushed today
Signal-Androidsignalapp/Signal-AndroidStars: 29.4KA private messenger for Android.Still shippingKotlinpushed today
GameNativeutkarshdalal/GameNativeStars: 10.9KNative PC gaming with Steam, Epic, GOG and Amazon integrations on AndroidStill shippingKotlinpushed today
novunovuhq/novuStars: 40.1KThe open-source communication infrastructure for agents and productsStill shippingTypeScriptpushed today