| Name | Modified | Size | Downloads / Week |
|---|---|---|---|
| Parent folder | |||
| Aster-Mail-1.0.21-full.apk | 2026-11-08 | 26.1 MB | |
| Aster-Mail-fdroid-1.0.21.apk | 2026-11-08 | 23.4 MB | |
| Aster-Mail.apk | 2026-11-08 | 26.1 MB | |
| README.md | 2026-11-08 | 2.1 kB | |
| v1.0.21 source code.tar.gz | 2026-11-08 | 10.8 MB | |
| v1.0.21 source code.zip | 2026-11-08 | 12.6 MB | |
| Totals: 6 Items | 99.2 MB | 0 | |
[!NOTE] This APK is for new installations and manual updates. If you installed Aster Mail from Google Play, it updates automatically. Aster-Mail.apk and Aster-Mail-1.0.21-full.apk are the same signed build: the first always points to the newest release and the second pins this version. Aster-Mail-fdroid-1.0.21.apk is the build F-Droid distributes.
What's new
- You can sign in with a hardware security key by holding it against your phone or plugging it in. If your key has a PIN, the app asks for it.
- To send new messages from the alias you have open in the sidebar, turn on Compose from selected alias in Settings > Behavior. Replies, forwards, and drafts keep their own sender.
Fixed
- When you move a conversation to a folder, every message in it moves, not only the one you opened.
- Contacts synced from your phone stay in place, and importing from your phone skips contacts you already saved.
- Sign-in alerts and bulk mail no longer appear in Deals.
- When you swipe a message you have read, the action label shows Unread, and tapping an avatar selects the message once.
- If your account has no encryption key, the app creates one when you sign in, and your existing mail stays readable.
Verify the APK
Every Aster Mail APK in this release is signed with the Aster release certificate. Before you install one, check that its signing certificate matches this fingerprint.
- Package name:
org.astermail.android - SHA-256 certificate fingerprint:
88:B0:A8:A6:FB:94:EE:73:A4:54:A0:F9:27:32:BD:40:8E:92:E5:1E:C1:E9:55:67:44:E5:F0:05:56:10:09:77
To check a downloaded APK on a computer, run apksigner verify --print-certs Aster-Mail.apk from the Android SDK build tools. The certificate SHA-256 digest line shows the same value in lowercase without colons. To check the app on your phone, use a verification app such as AppVerifier.
If you install Aster Mail from Google Play, Google Play signs it with its own key, so that copy has a different fingerprint: C2:0D:A2:1D:DA:9D:35:45:26:75:34:19:11:B0:01:E5:32:80:B5:C8:91:AB:90:9B:13:BF:27:63:77:40:A6:AF
