BlitzMail vs K-9 Mail
Side-by-side comparison of two open source alternatives
BlitzMail
BlitzMail is an Android app that allows you to set up your email account once and then use it to send emails or short notes to an address of your choice. This comes in handy when you need to send a lot of things via email, because you are in a low connectivity area (e.g. subway) and want to remember things to look at later. It also works when you are offline. BlitzMail then queues your emails and allows you to send them later when you have connectivity again. The SMTP password is stored encrypted with a built-in key and salted with your device ID. This is not fully secure, but should provide reasonable protection for your password.
K-9 Mail
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. 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.
| Feature | BlitzMail | K-9 Mail |
|---|---|---|
| License | AGPL-3.0-or-later | Apache-2.0 |
| Install sources | F-DroidGitHub | F-DroidGitHub |
| Categories | EmailBrowser | EmailBrowser |
| Features | Ad-FreeOpen SourceNo Tracking | Ad-FreeOpen SourceNo Tracking |
| Platforms | Android | Android |
| Website | ||
| Source code |