Thunderbird is a 100% open source, privacy focused email app.
About Thunderbird: Free Your Inbox
Thunderbird: Free Your Inbox is a communication app developed by Mozilla Thunderbird.
Download Statistics
Thunderbird: Free Your Inbox has been downloaded 1.9 million times. In the last 30 days, the app was downloaded 85 thousand times. It is ranked in the top 100 communication apps.
User Ratings
Thunderbird: Free Your Inbox is rated 3.67 out of 5 stars. The rating is based on 8.2 thousand ratings.
App Information
Thunderbird: Free Your Inbox is FREE to download. The APK download size is 10.12 MB. The latest version available is 19.2. The last update was on June 4, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play October 2024.
Description
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.
Recent changes: Thunderbird version 19.2
Fixed: - K-9 Mail crashed when scanning Thundermail QR code
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Comments on Thunderbird: Free Your Inbox for Android
★★★★☆k erd· May 28, 2026
Unified inbox is very good, but there is no unified sent box Folders should also unify like in the desktop app. Search also automatically trigger server search, in the case of unified folderd, it should send server search requests to all accounts
★★★★★SK· May 28, 2026
Have trouble in repeated authentication failure on Android 15, push notification not working and late email arrival. So far no issues with Android 16.
★★★★★Alex· May 16, 2026
Thunderbird is a really handy very nice mail agent and now that it is also an app for Android is so great, love it :)
★★★★★Eduard Stadtler· May 31, 2026
Excellent. Why people are so stupid using web mailers? I use it to store my e-mails locally, since I can search with many filters, very quickly ten thousand e-mails for keywords in the subject line or full text, or sender or can sort it by subject, date, sender etc. It finally turns your masses of e-mails info an excellent database. I have 20 e-mails in it and partly with 50,000 e-mails in which I can quickly search with keywords.
★★★★☆Simanta Karmakar· May 10, 2026
Nice app if you want an alternative to the Gmail app. I log in my Gmail here and its log in fine, but when I try to log in my Zoho Mail, it cannot.
★☆☆☆☆Jon Kipling· May 17, 2026
Trash. Does not load emails on time, does not provide notifications, and doesn't load app badges.
★★☆☆☆M Jackman· Jun 6, 2026
Draft incorrectly saved into quoted email field, showing attachment icon when no attachment, missing elements in fetched email, or failing fetching email, delay>1 day despite being set to fetch every hour. I hope this thing just works, but it doesn't. I also wish to customize unified inbox, so it doesn't include every account, like separated aggregated work, personal, but ignore this when it currently even refuses to run scheduled fetching in the morning just because flight mode is used at night
★★☆☆☆J B· May 23, 2026
After a week of use, 1. An email had sat in the outbox for a week. 2. Searching a gmail imap inbox requires me to submit a search, takes me to an empty page, then explicitly submit the query to the server again (why?). Needs refinement.
★★☆☆☆N. Ebneth· Jun 5, 2026
You can't insert signatures or hyperlinks mobile. The app on my smartphone always opens with the empty outbox of my main account. To fix it, I uninstalled the app, deleted all cookies, tried other things, nothing worked. Notifications don't work. The app works on laptop, but for mobile you should consider alternatives. On desktop version, I have no idea how to search for a mail. On the smartphone there is a search icon, but no similar option on the desktop version. I'll look for another mail app
★☆☆☆☆anchor· May 6, 2026
For Gmail accounts, it shows only the outgoing folder. Unusable.
Google Play Rankings for Thunderbird: Free Your Inbox
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