Thunderbird: Free Your Inbox

In-app purchases
9.79K reviews
Content rating
Parental guidance
1M+
Downloads
Content rating
Parental guidance
Parental Guidance Recommended
Users Interact, In-App Purchases
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About this app

Thunderbird is a powerful, privacy-focused email app. Effortlessly manage multiple email accounts from one app, with a Unified Inbox option for maximum productivity. Built on open-source technology and supported by a dedicated team of developers alongside a global community of volunteers, Thunderbird never treats your private data as a product. Supported solely by financial contributions from our users, so you never have to see ads mixed in with your emails again.

What you can do



  • Ditch multiple apps and webmail. Use one app, with an optional Unified Inbox, to power through your day.

  • Enjoy a privacy-friendly email client that never collects or sells your personal data. We directly connect you to your email provider. That’s it!

  • Take your privacy to the next level by using OpenPGP email encryption (PGP/MIME) with the “OpenKeychain” app, to encrypt and decrypt your messages.

  • Choose to sync your email instantly, at set intervals, or on-demand. However you want to check your email, it’s up to you!

  • Find your important messages using both local and server-side search.



Compatibility



  • Thunderbird works with IMAP and POP3 protocols, supporting a wide range of email providers, including Gmail, Outlook, Yahoo Mail, iCloud, and more.



Why use Thunderbird



  • The trusted name in email for over 20 years - now on Android.

  • Thunderbird is fully funded by voluntary contributions from our users. We don’t mine your personal data. You are never the product.

  • Made by a team that is as efficiency-minded as you are. We want you to spend minimal time using the app while getting maximum in return.

  • With contributors from all over the world, Thunderbird for Android has been translated into more than 20 languages.

  • Supported by MZLA Technologies Corporation, a wholly owned subsidiary of the Mozilla Foundation.



Open Source and Community



  • Thunderbird is free and open source, which means its code is available to see, modify, use and share freely. Its license also ensures that it will be free forever. You can think of Thunderbird as a gift from thousands of contributors to you.

  • We develop in the open with regular, transparent updates on our blog and mailing lists.

  • Our user support is powered by our global community. Find the answers you need, or step into the role of a contributor - whether it’s answering questions, translating the app, or telling your friends and family about Thunderbird.

Thunderbird is a 100% open source, privacy focused email app.
Updated on
Sep 9, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Personal info, Messages and 7 others
  • Data is encrypted in transit
  • You can request that data be deleted

Ratings and reviews

9.16K reviews
Oscar Murakami-Smith
November 9, 2024
Really on board for this app! I've had so many issues with so many apps but I think I might finally be able to settle. Only one bit of feedback I'd really liked implemented—RTF or html signatures! I want my signature to be the same as it is on my desktop, where I've gone to the trouble of making a nice html signature but no matter how hard I try (including importing settings from TB desktop, pasting from existing formatted text) this app de-formats my signature to pure text with no formatting.
120 people found this review helpful
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Neil Barnett
September 3, 2026
Good app, lots of features that I haven't found out how to use, yet. .. I shouldn't moan about a decent free app, but when I imported from the desktop app (one simple QR code, brilliant), I got my folders, but empty. The emails were all in one inbox. It doesn't matter to me, because I'm closing down that email, it was just a surprise.
2 people found this review helpful
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SlyMisanthrope
August 12, 2026
It's email. It allows me to avoid ads, but it does not allow you to block emails, and marking them as spam is useless. I thought these were selling points of the app. Pretty disappointing. Support requires you to download an entirely different app, which I refuse to do. I have zero desire to fill my phone with bloatware. I've had the same experience with it using Ubuntu on my laptop. I don't really like it, but there's nothing better out there. I have more to add, but Google said no.
6 people found this review helpful
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Mozilla Thunderbird
September 4, 2026
Thanks for the feedback, and for now, you'll want to manage spam with your provider. (We are exploring how we could add a spam filter.) But all our support is through the Mozilla Support (SUMO) page (support.mozilla.org) via Settings > Get Help. You do need an account to make a new question, but not a separate app!

What’s new

Thunderbird version 23.0

Fixed:
- Signature field only accepted single-line text in Composition defaults
Content rating
Parental guidance
Parental Guidance Recommended
Users Interact, In-App Purchases
Learn more

App support

About the developer
MZLA TECHNOLOGIES CORPORATION
mobile-appstore-admin@thunderbird.net
447 Sutter St San Francisco, CA 94108-4601 United States
+1 650-910-8704

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