Meshtastic-Android

The Meshtastic client for Android and Compose Desktop — an app for communicating over open-source mesh radios. For more information see our webpage: meshtastic.org. The device-side code lives in the firmware repository.

If you have questions or feedback please Join our discussion forum or the Discord Group. We would love to hear from you!

Features

Highlights of the 2.8 line:

• Mesh network discovery to surface nodes and channels around you, with Mesh Beacon invitations for joining nearby meshes.
• Waypoint geofences — draw zones on the map and get alerts when nodes cross them.
• Secure key backup — encrypted backup, restore, and delete for your device security keys.
• NFC sharing — write shared contacts and channels to NFC tags.
• XEdDSA packet signing indicators in the node and messaging UI.
• Air-quality telemetry — PM1.0, PM2.5, PM10, and CO₂ readings from supported sensors.
• App Functions / system-AI integration so on-device assistants can trigger common workflows.

Get Meshtastic

The fastest way to get releases is GitHub releases; pair them with Obtainium for automatic updates.

With Obtainium installed, tap a link below on your phone to set it up with everything pre-configured. The google flavor adds Google Crashlytics and Google Maps; fdroid has no Google dependencies.

What those two channels point at right now:

Closed-beta and per-commit snapshot channels, importable config files, and the setup details are in Test Builds & Obtainium. These links, files and the table above are generated — see obtainium/.

These providers are also available but may update more slowly.

The play store is the last to update of these options. To join the Play Store testing program, opt in to become a tester. If you encounter any problems or have questions, ask us on the discord, create an issue, or post in the forum and we'll help as we can.

Desktop

Meshtastic Desktop installers (macOS DMG, Windows MSI/EXE, Linux DEB/RPM/AppImage) are available from GitHub Releases. A Flatpak is available on Flathub (packaging repo: flathub/org.meshtastic.MeshtasticDesktop).

Documentation

The two documentation sites below are deployed to GitHub Pages automatically on every push to main.

Generating Locally

User & Developer Docs (Jekyll):

./gradlew generateDocsBundle publishDocsSite
BUNDLE_GEMFILE=docs/Gemfile bundle exec jekyll serve \
  --source build/_site --baseurl ""

API Reference (Dokka):

./gradlew dokkaGeneratePublicationHtml
# Output: build/dokka/html/index.html

Architecture

Modern Android Development (MAD)

The app follows modern Android development practices, built on top of a shared Kotlin Multiplatform (KMP) Core:

• KMP Modules: Business logic (core:domain), data sources (core:data, core:database, core:datastore), and communications (core:network, core:ble) are entirely platform-agnostic, targeting Android and Compose Desktop.
• UI: JetBrains Compose Multiplatform (Material 3) using Compose Multiplatform resources.
• State Management: Unidirectional Data Flow (UDF) with ViewModels, Coroutines, and Flow.
• Dependency Injection: Koin with Koin Annotations (K2 Compiler Plugin).
• Navigation: JetBrains Navigation 3 (Multiplatform routing with RESTful deep linking).
• Data Layer: Repository pattern with Room KMP (local DB), DataStore (prefs), and Protobuf (device comms). Protobuf models are consumed from the upstream org.meshtastic:protobufs Maven artifact, pinned in gradle/libs.versions.toml.

Bluetooth Low Energy (BLE)

The BLE stack uses a multiplatform interface-driven architecture. Platform-agnostic interfaces live in commonMain, utilizing the Kable multiplatform BLE library to handle device communication across all supported targets (Android, Desktop). This provides a robust, Coroutine-based architecture for reliable device communication while remaining fully KMP compatible. See core/ble/README.md for details.

Module Documentation

Each module has its own README with details on its responsibilities, API surface, and internal design.

Translations

You can help translate the app into your native language using Crowdin.

Integration

The app includes a built-in Local TAK Server feature that can be enabled in settings. This runs a loopback-only TLS (mTLS) server on port 8089 so ATAK on the same device can connect directly and route its traffic over the mesh.

Building the Android App

[!WARNING] Debug and release builds install side by side to ease development, but don't run both at once — force-quit the one you are not using.

Follow the Android development guide to set up your environment.

Note: when building the google flavor locally you will need a Google Maps Android SDK api key to use Google Maps. Create secrets.properties at the repo root and set MAPS_API_KEY=…. Without it the build still succeeds with a placeholder key, but map tiles will not load. e.g.

# secrets.properties
MAPS_API_KEY=your_google_maps_api_key_here

Contributing guidelines

For detailed instructions on how to contribute, please see our CONTRIBUTING.md file. For details on our release process, see the RELEASE_PROCESS.md file.

Repository Statistics

Copyright 2025-2026, Meshtastic LLC. GPL-3.0 license