Ltt.rs - JMAP Email client Android

Ltt.rs - JMAP Email client

No-frills, easy to use, Email client using the JSON Meta Application Protocol

Features & Capabilities

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

User Growth & Download Statistics

App
By:
Daniel Gultsch
Downloads:
5,028 11
Rating:
3.18
(62)
Version:
0.4.3 Last updated: 2024-01-07
Version code:
18
Creation date:
2020-02-26
Publisher country:
DE DE
Permissions:
  • android.permission.FOREGROUND_SERVICE Low risk
  • android.permission.INTERNET Low risk
  • android.permission.POST_NOTIFICATIONS Low risk
  • android.permission.RECEIVE_BOOT_COMPLETED Low risk
  • android.permission.WAKE_LOCK Low risk
  • android.permission.ACCESS_NETWORK_STATE Safe
  • rs.ltt.android.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Size:
7.26MB
Email:
in*****@siacs.eu
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Google Play Store
Data ingested on:
2026-06-13
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.
Developed by:
Daniel Gultsch
Google Play Store
https://play.google.com/store/apps/details?id=rs.ltt.android
Email:
in*****@siacs.eu
Website:
https://ltt.rs

User Reviews

Awesome! Please keep going with the development! The simple and clean UI is all I have ever wanted in a mail client
by Za*****, 2025-01-11

Good
by Na*****, 2024-03-18
View all user reviews ›

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