Question 1

Is Sterna Mail free to use?

Accepted Answer

Yes, Sterna Mail is free to download and use. There are no ads and no in-app purchases mentioned. It is released under the GPL-3.0-or-later license.

Question 2

Which Android version do I need to run the app?

Accepted Answer

Sterna Mail requires Android 8.0 or newer. The current version is 1.6.2, released on 2026-10-14. The app first became available on 2026-07-10.

Question 3

How large is the download file?

Accepted Answer

The APK is about 6.7 MB. This is the size of version 1.6.2, the latest release. Earlier versions such as 1.6.1 and 1.6.0 may differ slightly.

Question 4

Do I need to create an account to use Sterna Mail?

Accepted Answer

Sterna Mail does not require a separate account of its own. You set it up with your existing email address, either automatically or through a manual form if your domain does not publish the needed settings. Your email provider's credentials are what the app uses.

Question 5

What permissions does the app request?

Accepted Answer

The available information does not list specific Android permissions. The app does mention features such as an app lock with fingerprint or PIN, and push notifications without Google services via JMAP, IMAP IDLE or UnifiedPush. These may involve related permissions, but the exact list is not provided in the data.

Question 6

How do I update Sterna Mail to a newer version?

Accepted Answer

To update, download the newest version from this page and install it over your current copy. The latest version is 1.6.2 from 2026-10-14. Keeping the app up to date ensures you have the most recent fixes and features.

Download APK: Sterna Mail

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