/ Communication & Social
Indra

Indra

by ProjectMoon

App

Off-grid communication for Ubuntu Touch.

Install

About Indra

Indra is a Ubuntu Touch app for off-grid communication using LoRa mesh radios. Text with friends, family, and neighbors without an internet connection. Messages are sent via the radio, which connects to other radios nearby to form a network completely separate from traditional infrastructure.

You need an external radio to use this app. They are cheap to build or buy, and a one-time investment in off-grid communication. Indra supports radios running Meshtastic® firmware. You can connect to your radio over Bluetooth, the local network, or a USB cable (depending on the radio).

The app currently does not support setting up the radio or changing advanced settings. Please use the Android/iOS app or the Meshtastic® web client for that.

This is a work-in-progress app. Currently supported features:
- Connect to a configured radio over Bluetooth, Wi-Fi, or USB.
- Send messages to public channels, private channels, or directly to other users on the mesh.
- View and search the list of other radios that your radio is picking up.
- See a map of all nodes heard by your radio.
- Add/remove favorite nodes.
- Store & Forward.
- Trace Route.
- Change basic settings on a set-up radio.
- Remove Node.

Things currently NOT supported:
- Configuring advanced settings on the radio and setting up the radio for the first time.
- Waypoints.
- Remote administration.

Recent Changes

Version 1.4.1:
- Improvement: Update hops-away of all nodes encountered during trace-route.
- Improvement: Send heartbeat packets to keep the radio connection alive.
- Improvement: Upgrade async framework and dependencies.
- Fix: Connecting to new radio will no longer sometimes open wrong radio DB.

Permissions

  • Networking
  • Bluetooth
  • Push Notifications
  • Location
  • Unrestricted write access to: /dev/ttyACM*
  • Unrestricted write access to: /dev/ttyUSB*
  • Unrestricted write access to: /dev/ttyS*
  • Unrestricted read access to: /dev/ttyACM*
  • Unrestricted read access to: /dev/ttyUSB*
  • Unrestricted read access to: /dev/ttyS*
  • Unrestricted read access to: /sys/class/tty
  • Unrestricted read access to: /sys/class/tty/
  • Unrestricted read access to: /sys/class/tty/*
  • Unrestricted read access to: /sys/devices/platform
  • Unrestricted read access to: /sys/devices/platform/
  • Unrestricted read access to: /sys/devices/platform/*serial*

Community Built

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

Get involved

Info

  • Published Date

    Jan 20, 2026

  • Updated Date

    Apr 21, 2026

  • Current Version

    1.4.1

  • Total Downloads

    610

  • Latest Version Downloads

    47

  • Supported Architectures

    armhf, amd64, arm64

  • Translation Languages

    ca, de, es, id, lo, nb_NO, nl, ru, ta, uk, zh_Hant

Links

Reviews

Lothar Ketterer

Reviewed Feb 19, 2026 for version 1.2.2 (older version)

I like :-)

Luksus

Reviewed Feb 17, 2026 for version 1.2.1 (older version)

Nice start! Basics are working very well, the UI is clean and well organized.