
Proton Mail
Free tier Our pickThe pragmatic default: encrypted, Swiss, free tier to start, custom domains on paid plans. One account also replaces Calendar and Drive.
7 private options, our pick first. Every download link goes straight to the source — F-Droid, the developer's GitHub releases (one tap into Obtainium), the Play listing you can install anonymously through Aurora Store, or the official site. None of these are affiliate links. Updated October 2026.
These Gmail alternatives are for anyone who wants their inbox off Google's servers without losing a usable mail app on Android. Proton Mail and Tuta encrypt your mailbox and work through their own apps. Mailbox.org, Posteo and Fastmail use standard IMAP, so almost any mail client works with them.
The trade-off is convenience. Encrypted providers don't plug into every third-party app, and your old address stays with Google. Plan to replace Gmail in stages: forward first, then move contacts and logins. A private inbox in 2026 is mostly a weekend of admin, not a technical project.

The pragmatic default: encrypted, Swiss, free tier to start, custom domains on paid plans. One account also replaces Calendar and Drive.

Leaner and cheaper, everything encrypted including subject lines.


The open-source mail app formerly known as K-9 Mail. Works with any provider over IMAP — pair it with Mailbox.org or Posteo.

Privacy-obsessed IMAP client with tracking-pixel blocking and a mountain of settings. Core is free; some extras are a paid unlock.

German, green-powered, €1 a month, no ads, and you can sign up anonymously. Standard IMAP, so any app above works.

Polished, fast, great custom-domain support. Not end-to-end encrypted — private by policy, not by math.
Don't self-host email as your first project — deliverability is a part-time job. Move mail to a provider first, self-host other things.
No. The @gmail.com address belongs to Google, so it can't move to another provider. What you can do is forward Gmail to the new inbox and reply from the new address. If you want an address you never have to change again, use your own domain. Proton, Tuta, Mailbox.org and Fastmail support custom domains on paid plans.
It depends on how you read mail. Proton and Tuta store your mailbox encrypted and work through their own apps, which limits third-party clients. Mailbox.org, Posteo and Fastmail use standard IMAP, so Thunderbird for Android or FairEmail can read them. Their stored mail is protected by the provider's policy rather than end-to-end encryption by default.
Yes. Email between providers works the same as before, and Gmail users see a normal message from you. End-to-end encryption only applies fully between users of the same service, or when both sides use PGP. A message you send to a Gmail address is usually encrypted in transit, but Google can read it once it lands there.