No-frills, easy to use, Email client using the JSON Meta Application Protocol
Not recently updated — last update was on 2024-01-07.
This app may no longer be actively maintained.
About Ltt.rs - JMAP Email client
Ltt.rs - JMAP Email client is a communication app developed by Daniel Gultsch.
Download Statistics
Ltt.rs - JMAP Email client has been downloaded 5 thousand times. In the last 30 days, the app was downloaded 57 times.
User Ratings
Ltt.rs - JMAP Email client is rated 3.18 out of 5 stars. The rating is based on 61 ratings.
App Information
Ltt.rs - JMAP Email client is FREE to download. The APK download size is 7.26 MB. The latest version available is 0.4.3. The last update was on January 7, 2024.
Technical Requirements
Ltt.rs - JMAP Email client requires Android 6.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play March 2020.
Description
Ltt.rs (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.
To use Lttrs you need a JMAP (JSON Meta Application Protocol) capable mail server!
Features & Design considerations:
· Heavily cached but not fully offline capable. Ltt.rs 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. Ltt.rs 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. Ltt.rs 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 Ltt.rs. · Ltt.rs 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
Ltt.rs is licensed under the Apache License 2.0. The source code is available on Codeberg: https://codeberg.org/iNPUTmice/lttrs-android
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Comments on Ltt.rs - JMAP Email client for Android
★★★★☆Michael Wang· May 4, 2021
Regular IMAP plugin is needed for the app.
★★★★★Indelible Inkstain· Jun 26, 2020
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 :)
★★★★★Benedikt Kaussen· Mar 4, 2020
Pretty good tech demo. It's not yet usable on a daily basis, but it provides an outlook on what is to come.
★★★★☆Matiur Rahman· Dec 29, 2023
Please tell me in detail how to configure this email app.
★★☆☆☆BabyGirl & Little Man Billings· May 1, 2021
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
★☆☆☆☆Timmy Douglas· Apr 4, 2026
Can't get it working, it seems to force trying to log in with the email address rather than allowing a separate login name which is how I have it set up in stalwart. Would like to see more debugging info
★☆☆☆☆T P· Mar 4, 2020
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.
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Technologies used by Ltt.rs - JMAP Email client
Ltt.rs - JMAP Email client is requesting 7 permissions and is using 34 libraries.
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