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Sterna MailFairEmail
Free

Free and open source under the GPL-3.0-or-later licence, with no ads.

 Free

Free to download from Google Play, F-Droid or GitHub releases.

Android Android
  • Native JMAP support as well as IMAP/SMTP
  • No tracking, ads or Google services
  • Works with nearly all IMAP providers and unlimited accounts
  • OpenPGP and S/MIME encryption built in
  • Android only
  • Young project still changing its interface often
  • No Microsoft Exchange Web Services or ActiveSync support
  • Android only
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0-or-later License: GPL-3.0
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Works offline

Checked October 2, 2026

Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.