K-9 Mail

Installs

9.4m

Rating

3.3

Rating count

99.8k

Category	Communication
Developer	MZLA TECHNOLOGIES CORPORATION
Price	Free
Version	10.0
In-app purchases	No
Contains ads	No
Content rating	Rated for 3+
Package name	com.fsck.k9

View on Play Store

Core Metrics

Data Breakdown

Date	Rating Count	Average Rating	Installs	Version
6/14/2025	99,836	3.311	9,389,364	10.0
6/13/2025	99,834	3.293	9,389,364	10.0
6/9/2025	99,835	3.411	9,388,261	10.0
6/8/2025	99,833	3.422	9,387,036	10.0
5/29/2025	99,830	3.293	9,386,357	N/A
5/28/2025	99,813	3.293	9,381,607	N/A
5/27/2025	99,813	3.293	9,381,285	N/A
5/24/2025	99,811	3.274	9,379,904	N/A
5/22/2025	99,806	3.664	9,378,952	N/A
5/21/2025	99,803	3.670	9,377,459	N/A
5/20/2025	99,797	3.693	9,377,459	N/A
5/19/2025	99,796	3.708	9,377,005	N/A
4/28/2025	99,770	3.417	9,366,978	N/A
4/24/2025	99,768	3.224	9,366,615	N/A
4/23/2025	99,752	3.330	9,364,513	N/A
4/22/2025	99,750	3.730	9,361,753	N/A
4/15/2025	99,748	3.736	9,361,753	N/A
4/10/2025	99,741	3.230	9,360,201	N/A
4/6/2025	99,734	3.222	9,357,783	N/A
3/10/2025	99,714	3.365	9,353,142	N/A
2/27/2025	99,677	3.389	9,339,450	N/A
2/20/2025	99,664	3.417	9,334,866	N/A
2/17/2025	99,646	3.425	9,332,203	N/A

Details

K-9 Mail is an open source email client that works with basically every email provider.

Features

* supports multiple accounts
* Unified Inbox
* privacy-friendly (no tracking whatsoever, only connects to your email provider)
* automatic background synchronization or push notifications
* local and server-side search
* OpenPGP email encryption (PGP/MIME)

Install the app "OpenKeychain: Easy PGP" to encrypt/decrypt your emails using OpenPGP.


Support

If you're having trouble with K-9 Mail, ask for help in our support forum at https://forum.k9mail.app


Want to help?

K-9 Mail is now part of the Thunderbird family and remains a community developed project. If you're interested in helping to improve the app, please join us! You can find our bug tracker, source code, and wiki at https://github.com/thunderbird/thunderbird-android
We're always happy to welcome new developers, designers, documenters, translators, bug triagers and friends.

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