Open Source Gmail Alternatives for Android

There are many alternatives to Gmail for Android if you are looking for a replacement. The best open source Android alternative is Proton Mail. If that doesn't suit you, our users have ranked more than 100 alternatives to Gmail and seven of them are open source and available for Android so hopefully you can find a suitable replacement. Other interesting open source Android alternatives to Gmail are Tuta Mail, Infomaniak kMail, Swisscows.email and SwisMail.

filter to find the best alternatives

Gmail alternatives are mainly Email Clients, but if you're looking for WebMail Providers or Calendar Apps you can filter on that. Other popular filters include Open Source, Free, Android + Free, Android, Android + Open Source, Linux and Self-Hosted. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Gmail.
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Alternatives list

  1. Proton Mail icon

    Proton Mail

     1122 likes

    Proton Mail provides secure email services with end-to-end encryption, ensuring data protection. Swiss-based and outside US jurisdiction, it offers a free version to champion privacy as a human right. Fully accessible on any device.

    109 Proton Mail alternatives

    Cost / License

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • iPad
    • Snapcraft
    • Flathub
    • Tor
    • OpenAPK
    Proton Mail screenshot 1
     
    |
    35
    Proton Mail vs Gmail Comments
    Top Positive Comment
    John Fastman
    19

    Protonmail is free, open-source, encrypted (more private). Lacks: calendar & good contacts feature, but these are in the pipeline. Protonmail cannot by design data-mine your software for it's own profit; Gmail makes it's money by violating your privacy that way.

    Raposu
    Positive
    0

    Better than Gmail but i prefer tuta because they are more focused in FOSS alternatives, where as proton have some propietary services and didn't care as much of other stuff (as windows usage) But great improvement over gmail, for sure!

    Shaz Shah
    Positive
    1

    Proton Mail is my primary email and I have been moving away from GMail. In fact I do pay for it.

    Proton Mail has been reliable and their support has been great. The UI is different and pleasant, and they have apps that cater for different platforms (Windows, macOS, Android, etc).

    3 of 35 comments
    • Proton Mail is Freemium and Open SourceGmail is Free and Proprietary
    • Proton Mail is Privacy focusedGmail is not according to our users
  2. Tuta Mail icon

    Tuta Mail

     580 likes

    Offers comprehensive encryption for email, calendar, and contacts with zero personal info required. Built on open source, install via Play Store, F-Droid, or APK, with Tor and VPN support. Both free and paid plans; utilizes quantum-resistant encryption ensuring privacy-focused, anonymous usage.

    111 Tuta Mail alternatives

    Cost / License

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Flathub
    • F-Droid
    • Thunderbird
    • OpenAPK
    Tuta Mail screenshot 1
     
    |
    14
    Tuta Mail vs Gmail Comments
    Top Positive Comment
    justinterested
    8

    Tutanota is a great email provider with very good encryption (it uses end-to-end encryption like Signal – i.e. they cannot read your emails/gife them to the government, Gmail can!) and they don't sell any data. It is also very easy to use, it has a very nice app, a desktop client and a web client. There is really no reason why you wouldn't want to use it :)

    Top Negative Comment
    Guest
    24

    Does not support POP/IMAP, you will not be able to use it with Thunderbird or another email client.

    Raposu
    Positive
    0

    Works great and it will be a great substitute for someone looking to fully degoogle (They even use their own push service rather than Playstore's and they always support FOSS stuff as Linux, GrapheneOS and others...) If you just want your own mail and calendar this is perfect, E2EE. without AI and with their own apps :D

    3 of 14 comments
    • Tuta Mail is Freemium and Open SourceGmail is Free and Proprietary
    • Tuta Mail is Privacy focused and LightweightGmail is not according to our users
  4. Infomaniak kMail icon

    Infomaniak kMail

     52 likes

    Privacy-focused Swiss email system provides 20 GB free storage, supports custom domains and unlimited storage, syncs contacts and calendars, is ad-free, and is part of a secure productivity suite used by over a million users across Europe on all devices.

    52 Infomaniak kMail alternatives

    Cost / License

    Application types

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • F-Droid
    Infomaniak kMail screenshot 1
     
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    3
    Infomaniak kMail vs Gmail Comments
    Guest
    Positive
    1

    You have all the functions you need in workspace, like Gmail. Fully customizable, high security. This product is professional. I use it since 2 year, and I don't want to return to Gmail. Only one point : you need a domain name. But it's more original like a Gmail.com address...

    hb9vaf
    Positive
    0

    I very good alternative for mail, contact & agenda

    ImSebi
    Positive
    0

    Much better than Gmail. And now you don't need a domain anymore, it's free for everyone.

    • Infomaniak kMail is Freemium and Open SourceGmail is Free and Proprietary
    • Infomaniak kMail is Privacy focusedGmail is not according to our users
  5. Ad
    Screenshot
    Proton Mail icon
    Proton Mail

    Proton Mail provides secure email services with end-to-end encryption, ensuring data protection. Swiss-based and outside US jurisdiction, it offers a free version to champion privacy as a human right. Fully accessible on any devi...

    https://proton.me
    Learn More
  6. Swisscows.email icon

    Swisscows.email

     5 likes

    Swisscows.email is another product of Swisscows AG. This product offers you secure email traffic. With Swisscows.email you can send your emails encrypted so that absolutely no one can read them. The service is comparable to a letter that is protected from prying eyes in an...

    Cost / License

    • Paid
    • Open Source

    Application types

    Platforms

    • Online
    • iPhone
    • iPad
    • Android
    • Android Tablet
    Swisscows.email screenshot 1
     
  8. SwisMail icon

    SwisMail

     1 like

    Secure Free EMail Service Hosted in Switzerland.

    Cost / License

    • Freemium
    • Open Source

    Application type

    Platforms

    • Online
    • Android
    • iPhone
    SwisMail screenshot 1
     
  9. Keychat icon

    Keychat

     2 likes
    • Senders send messages stamped with Bitcoin ecash to Nostr relays. The Nostr relays collect the Bitcoin ecash, then deliver messages to receivers.

    Cost / License

    Application types

    Platforms

    • Android
    Keychat screenshot 1
     
  10. Criptext icon

    Criptext

     10 likes

    Finally, an email service that's built around your privacy. Get your @criptext.com email address and see what it's like to have peace of mind and privacy in every email you send.

    Cost / License

    • Free Personal
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    Criptext screenshot 1
     
7 of 7 Gmail alternatives