/ Communication & Social
DeltaTouch

DeltaTouch

by Lothar Ketterer

App

Decentralized, secure messenger app, powered by the chatmail core library

Install

About DeltaTouch

Community-created messenger based on the chatmail core library, compatible with the official Delta Chat clients. For more infos about Delta Chat see https://delta.chat.

Push notifications via the UBports push server work if you are using a chatmail profile. For details, see https://codeberg.org/lk108/deltatouch/wiki/Notifications.

UT 16.04 (xenial) users: Xenial is not supported by the OpenStore anymore and new versions cannot be uploaded. See here for a more recent version and more infos: https://codeberg.org/lk108/deltatouch/releases/tag/v1.10.2-xenial

News will be published in the Fediverse. If you have an account (e.g., on mastodon), follow @deltatouch@social.tchncs.de. With a browser, visit https://social.tchncs.de/@deltatouch.
Or go for the rss feed: https://social.tchncs.de/@deltatouch.rss

If you like this app, please consider a donation to Delta Chat (https://delta.chat/en/donate) and the UBports foundation (https://ubports.com/en/donate).

Recent Changes

2.43.0 2026-02-25
Feature: Differentiate incoming audio and video calls
Feature: Outgoing calls: select audio or video
Feature: Select multiple files for sending (#183)
Feature: Several addresses per profile (experimental) (#181)
Bugfix: Don't log sensitive data in UT push helper (#205)
Bugfix: Don't send whitespace only messages (#200)
Bugfix: Stop IO while configuring new context from QR
Bugfix: All experimental settings affect all profiles
Bugfix: Hide setting show_emails for chatmail profiles
Bugfix: Add fontconfig for qt5 compatible emoji font (#193)
Bugfix: Linkify bio and improve img tag escaping (#187)
Refactor: Minor improvements in chatmodel
Refactor: Remove deleted messages upon DC_EVENT_MSG_DELETED
Refactor: Check for first read message to set the unread indicator
Refactor: Don't use extra entry in msgVector for unread message bar
Miscellaneous Task: Improve profile deletion dialog
Miscellaneous Task: Use configured_addr if no profile name set
Miscellaneous Task: Update translations
Miscellaneous Task: Align strings and UX with official clients
Miscellaneous Task: Update README; add CONTRIBUTING and BUILDING (#197)
Miscellaneous Task: Update core translations
Miscellaneous Task: update calls-webapp to 0.12.0
Miscellaneous Task: Use chatmail core v2.43.0; associated changes
Miscellaneous Task: Re-arrange items on settings page
Miscellaneous Task: Move legacy options to separate section in Advanced Settings
Miscellaneous Task: Remove deprecated setting "webxdc_realtime_enabled"
Miscellaneous Task: Snapcraft lint warnings/information; refer to metainfo in snapcraft.yaml (#199)
Miscellaneous Task: Add vcs-browser to manifest (#194)
Miscellaneous Task: Deprecate database encryption (#184)
Miscellaneous Task: Add missing nix dependecies (#186)

Permissions

  • Audio
  • Camera
  • Keep Display On
  • Networking
  • Connectivity
  • Content Exchange Source
  • Content Exchange
  • Microphone
  • Push Notifications
  • Webview

Community Built

This app has been released under the GNU GPL v3 license. It is developed in the open and you can review the source code.

Get involved

Info

  • Published Date

    Jul 1, 2023

  • Updated Date

    Feb 25, 2026

  • Current Version

    2.43.0

  • Total Downloads

    9,245

  • Latest Version Downloads

    159

  • Supported Architectures

    arm64, armhf, amd64

  • Translation Languages

    ar, az, bg, bqi, ca, ckb, cs, da, de, el, eo, es, et, eu, fa, fi, fr, gl, hr, hu, id, it, ja_JP, kab, ko, la, lt, nah, nb, nl_NL, pl, pt, pt_BR, ro, ru, sc, sk, sq, sr, sv, ta, te, tg, tr, uk, vi, zh_CN, zh_TW

Links

Reviews

Richard

Reviewed Mar 2, 2026 for version 2.43.0

Awesome app 👍

pekelinux-x

Reviewed Feb 24, 2026 for version 2.35.0 (older version)

Estupenda app para comunicarse de manera libre y privada. No habre las imagenes y chat de grupos como "pixel social" por ejemplo.💚👍

Samuel Luizari Wahbe

Reviewed Feb 24, 2026 for version 1.6.0 (older version)

I love it, this so good bro

manisak

Reviewed Jan 28, 2026 for version 2.35.0 (older version)

Has Potential!!

MetallicaMust

Reviewed Nov 26, 2025 for version 2.22.0 (older version)

Pour moi, la meilleur application de communication !

Joan CiberSheep

Reviewed Oct 27, 2025 for version 2.22.0 (older version)

Really nice app. And push notification work! Weee (turn them off and on again). The app doesn't follow UT guidelines in sone places. For the rest? First place in DeltaChat train. Thank you!

Dennis Kersten

Reviewed Oct 13, 2025 for version 2.9.0 (older version)

Omg exactly what I needed. Simple and secure!

Kugi Eusebio

Reviewed Aug 10, 2025 for version 2.9.0 (older version)

I don't really use this app but I'm really impressed by the quality and the features it has. It even has QR codes to login on another device. It's really cool. I wish many more apps like this appears on Ubuntu Touch. Thanks to the developer 😄

Kalimbo Mkalla

Reviewed May 28, 2025 for version 1.16.0 (older version)

Successfully imported my backup from Android! Everything including data from my TOTP mini app was there. Notifications work reliably after preventing app suspension via Tweak tool.

Daniel Frost

Reviewed Mar 28, 2025 for version 1.14.1 (older version)

Works very well and does 1:1 chats or groups. Many more features like integrated mini apps e.g. checklist or calendar.