K-9 Mail

K-9 Mail is a free and open source email client for Android.

K-9 Mail

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View on Google Play Store

App stats

Users: 9,294,589
3.84K
0.03
Version: 8.1 (Last updated: 2024-11-06)
Permissions
Contacts: read your contacts
Other:
  • view network connections
  • full network access
  • read sync settings
  • run at startup
  • control vibration
  • prevent device from sleeping

Ranking

# 12,449 ▼ 30
Other rankings
#6 in export emails keyword 65 ▲ #14 in mail keyword 92 ▲ 1

Other platforms

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App summary

Analyze keywords

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 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.

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Google Play Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Easy to set up with multiple email accounts
  • Generally reliable for many users over the years
  • Competence in functionality compared to other bloated email apps
  • Clear organization of emails in the UI (prior to recent changes)
  • Good support for various email protocols and settings
Cons
  • New interface is clunky, cumbersome, and unintuitive
  • Frequent authentication errors and connectivity issues
  • Battery drain and resource overuse concerns
  • Recent updates have made navigation more difficult and less user-friendly
  • Inability to send email replies without indication of failure
Most mentioned
  • Negative impact of the new interface on usability
  • Authentication and connectivity problems
  • Battery drain and performance issues
  • Loss of features and functionality with updates
  • Desire for a legacy version or options to revert changes
User reviews
Another developer screws up a perfectly fine interface. Looks like I'm not the only one saddened and disappointed at the latest update, which actually increased opacity of the email accounts, which is the exact opposite effect one would presume consumers desire in their email client. I suggest adding conig settings or some sort of skin option to recover from this epic failure. Will start shopping for a new client soon.
by Gary G, 2024-11-20
No. Just, no. It went from 5 stars to 1 in one version. The new interface is clunky and cumbersome, and unintuitive. The old interface was perfect, especially if you have multiple accounts. Please bring it back, make a legacy version, something. I am one inch away from going to another app and chalking this into the "Used to be amazing" list.
by Dan Gilliam, 2024-11-05
The new interface is horrible. I have multiple GMail accounts and all I see is GM with no way to tell which is which. I don't memorize the account and color combinations. At least with the old interface I could see the account name and select the account I wanted. I've been a loyal K-9 Mail user for many years but I'm looking for a more user-friendly client now.
by Bill Mungaven, 2024-11-03
View all user reviews

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