- Open Source Email client (JMAP) APK

Version 0.3.3 -

No-frills, easy to use, Email client using the JSON Meta Application Protocol - Open Source Email client (JMAP) apk

APP Information

Download Version 0.3.3 (14)
Apk Size5.77 MB
App DeveloperDaniel Gultsch
Malware CheckTRUSTED
Install on Android6.0 and up

Download - Open Source Email client (JMAP) 0.3.3 APK

Introducing – an open source JMAP Email Client App for Android. In this ever-evolving age of technology, mobile devices have taken the center stage in our daily lives. With the right mobile app, you can make your life easier and more productive than ever before. When it comes to email, choosing the right email client can make a huge difference. offers an efficient and secure email client based on the open source JMAP protocol, perfect for staying organized and productive while on the go.

The unique thing about is that it doesn’t just open and send emails, but allows users to create an interactive mobile mail system that is highly optimized for people on the go. Its revolutionary design makes organizing and managing your emails effortless. With you can access, manage, and search for emails in an instant. The app quickly fetches emails from your provided accounts and instantly organizes them into multiple folders, providing you with a fast, effective overview of your mail. also supports multiple accounts. You can easily manage up to three different accounts with the one app. The open source JMAP protocol makes it secure and reliable. Additionally, incorporates an intelligent conversation model, providing an easy and intuitive way to view and organize emails. Each conversation in the app can be sorted differently and allows users to quickly find the relevant emails.

Usability is the main concern of and in order to ensure a truly satisfying user experience, the app is constantly being improved and updated. Thanks to an experienced development team with a strong track record, the app is getting more and more advanced as time passes. With its secure encryption, guaranteed uptime, and multi-account support, is the ideal android email client for businesses and individuals alike.

When you need a reliable, secure, and efficient email client for android, consider An open source JMAP email client, it is designed to make your life easier and more productive.

App Description - Open Source Email client (JMAP) is android,communication,, content rating is Everyone (PEGI-3). This app is rated 5 by 1 users who are using this app. To know more about the company/developer, visit Daniel Gultsch website who developed it. apps can be downloaded and installed on Android 6.0 and higher Android devices. The Latest Version of 0.3.3 Available for download. Download the app using your favorite browser and click Install to install the application. Please note that we provide both basic and pure APK files and faster download speeds than APK Mirror. This app APK has been downloaded 95+ times on store. You can also download APK and run it with the popular Android Emulators. (pronounced Letters) is a proof of concept email (JMAP) client currently in development. It makes heavy use of Android Jetpack for a more maintainable code base than some of the preexisting Android email clients.
Features & Design considerations:
· Heavily cached but not fully offline capable. makes use of JMAP’s great caching capabilities. However actions, such as marking a thread as read, need a round-trip to the server until their consequences like unread count are updated. will ensure that the action itself won’t get lost even if performed while momentarily offline.
· No settings aside from account setup. Settings invite feature creep and make the app hard to maintain. aims to support one specific work flow. Users who desire a different work flow may find K-9 Mail or FairEmail more suitable.
· Minimal external dependencies. Third party libraries are often of poor quality and end up being unmaintained. Therfore we will only rely on well known, well tested libraries from reputable vendors.
· Autocrypt as a first class feature¹. With its strict UX guidelines autocrypt fits right into
· is based on jmap-mua, a headless email client, or a library that handles everything an email client would aside from data storage and UI. There is also lttrs-cli which uses the same library.
· When in doubt: Look at Gmail for inspiration.
¹: Planned feature is licensed under the Apache License 2.0. The source code is available on Github: 

App ChangeLog

  • · Preview attachments
  • · Support Autocrypt-Gossip
  • · Various bug fixes

App Screens - Open Source Email client (JMAP) App Screen - Open Source Email client (JMAP) App Screen - Open Source Email client (JMAP) App Screen - Open Source Email client (JMAP) App Screen 4

Apk scan results

Apk Scaned By TotalVirus Antivirus, Was Pure And Safe.

Scan Stats:harmless:0|type-unsupported:10|suspicious:0|confirmed-timeout:0|timeout:0|failure:0|malicious:0|undetected:63|
File type:Android
Magic:Zip archive data
File size:6049961
Uncompressed Size:10612070
Contained Files	:1423
Contained Files By Type:dex:2,xml:655,gz:1,png:185,

Older Versions

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Google Play Reviews

  1. Indelible Inkstain-avatar

    Indelible Inkstain

    Nice app in need of additional features (which I have no doubt are planned) but definitely usable for now. Would like to be able to see headers and/or source before opening a message; slide to delete option and, of course, dark theme :)

  2. BabyGirl & Little Man Billings-avatar

    BabyGirl & Little Man Billings

    I haven't got the slightest idea what my URL is. Most email apps just asked for your password. I never got a chance to check out this app for that reason, a little disappointed

  3. Benedikt Kaussen-avatar

    Benedikt Kaussen

    Pretty good tech demo. It's not yet usable on a daily basis but it provides an outlook on what is to come.

  4. T P-avatar

    T P

    couldn't add my account. wouldn't understand my email address - a gmail account. This asked for a connection url to set it up, but no documentation anywhere on what the connection url is supposed to be. Deleted.

  5. Michael Wang-avatar

    Michael Wang

    Regular IMAP plugin is needed for the app.

  6. CheikhMousa Youssef-avatar

    CheikhMousa Youssef


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