MeshCore Open: Free Companion App for Android, iOS, and Desktop

There’s a free, open-source companion app for MeshCore that runs on Android, iOS, Linux, Windows, macOS, and in your web browser. It’s called MeshCore Open, and it covers the full feature set — messaging, maps, repeater management, path tracing — without charging for any of it.

If you’ve been using MeshCore and want a companion app that lets you manage your nodes, send messages, visualize your network on a map, and configure repeaters without paying for anything, this is it.

What MeshCore Open Actually Does

MeshCore Open connects to your MeshCore LoRa devices over BLE, USB, or TCP and gives you a full interface for everything the mesh can do.

Messaging

Direct messages — private, encrypted, peer-to-peer conversations
Public channels — broadcast to channel subscribers across the mesh
Message reactions — emoji responses on messages
Swipe to reply — threaded inline replies
Message retry — automatic retry with configurable path clearing when messages fail to deliver
Contact sharing — share contact info with other nodes on the mesh
Contact groups — organize contacts into custom groups
Contact search — filter and sort contacts by name, type, last seen, or unread status

Map and Location

Live network map — every node on your mesh, displayed on an interactive map in real time
Node filtering — show only chat nodes, repeaters, or sensors. Filter by time range
Offline maps — download map tiles for areas with no internet. This is the whole point of off-grid networking
MGRS coordinates — Military Grid Reference System support for the kind of people who actually operate off-grid
Location sharing — send GPS coordinates to contacts
Set location from map — long-press the map to set your node’s position
GPX export — export map data for use in other tools
Line of sight analysis — visualize line-of-sight to repeaters for placement planning

Repeater Management — No Charge, No Paywall

This is where MeshCore Open stands out. Managing repeaters and room servers is built in and free:

Full CLI access — send any command to your repeaters directly from the app
Settings management — configure repeater power, frequency, bandwidth, spreading factor, network ID, and behavior
Telemetry dashboard — battery voltage, traffic stats, connected clients, uptime, system health
Neighbor discovery — see which nodes your repeater can hear and their signal quality
Battery monitoring — real-time battery percentage with configurable chemistry (NMC, LiFePO4, LiPo) so the voltage curve matches your actual battery
Remote management — administer repeaters from anywhere on the mesh, not just when you’re standing next to them
Room server management — same level of control for room servers
Repeater adverts — enable or disable repeater advertisements

You don’t pay extra for this. It’s in the app because it should be in the app.

Path Tracing and Signal Analysis

MeshCore’s routing is what makes it different from flood-based protocols, and MeshCore Open gives you visibility into how packets move through your network:

Path visualization — see the route each message takes through the mesh
Path history — success rates and trip times for each path
Manual path override — force a specific route when you know better than the automatic routing
Automatic route rotation — let the app cycle through working paths
Signal metrics — real-time SNR tracking for each contact
Path tracing on map — visualize routes geographically
Nearest repeater signal — signal readout for the closest repeater

Device Configuration

Radio settings — transmit power (10–30 dBm), frequency, bandwidth, spreading factor
GPS controls — enable/disable GPS, configure reporting interval
Network settings — mesh network ID, path hash mode
Battery chemistry — set per-device so voltage readings are accurate for your hardware
Connection options — BLE, USB, and TCP. Connect however your hardware supports it

Utilities

In-app debug logging — three-level log viewer (info, warning, error) with copy and clear, max 1000 entries with automatic rotation
Background BLE connection — stays connected to your companion device in the background
Configurable notifications — separate notification controls for direct messages, channel messages, and node advertisements
Theme support — system default, light, or dark mode

Runs Everywhere

MeshCore Open is built with Flutter. Android APKs and Linux builds are available as prebuilt downloads. Other platforms can be built from source in a few minutes:

Platform	BLE	USB	TCP
Android (API 21+)	Yes	Yes	Yes
iOS (12+)	Yes	In progress	In progress
Linux	Yes	Yes	Yes
Windows	Yes	Yes	Yes
macOS	Yes	Yes	Yes
Web (Chrome)	Yes	Yes	Needs WebSocket bridge

The web version works in Chrome with Web Bluetooth and Web Serial. You can manage your mesh from a browser tab.

15 Languages

The app ships with localization for 15 languages: English, Chinese, French, Spanish, Portuguese, German, Dutch, Polish, Swedish, Italian, Slovak, Slovenian, Bulgarian, Russian, and Ukrainian. All contributed by the community.

Who’s Building This

MeshCore Open isn’t a one-person side project that might disappear. It has 19 contributors, 334+ pull requests merged, and 362 stars on GitHub. The top contributors — zjs81, just-stuff-tm, wel97459, benallfree, 446564 — are actively shipping features and reviewing code. The project has gone through 7 alpha releases since December 2025, each one with a substantial changelog.

Recent additions include USB and TCP connectivity, line-of-sight analysis for repeater placement, ML-based adaptive timeout prediction, contact discovery, and mute channel support.

How to Install

Android

Download the latest APK from the releases page or install via Obtainium for automatic updates.

iOS

Join the TestFlight beta.

Desktop and Web

Build from source:

git clone https://github.com/zjs81/meshcore-open.git
cd meshcore-open
flutter pub get
flutter run

Prebuilt Linux binaries are also available on the releases page. Windows and macOS require building from source for now.

Why Open Source Matters for Mesh Networking

Mesh networking exists because people want communication infrastructure they control. A closed-source companion app works against that premise. If the app decides to charge for repeater management, or stops getting updates, or adds telemetry you didn’t ask for, you’re stuck.

MeshCore Open is MIT licensed. The code is on GitHub. You can read it, fork it, modify it, and run it yourself. If the project direction ever changes, the community keeps the code. That’s how infrastructure software should work.

If you’re running a MeshCore network, this app is worth trying. If you’re already using it, consider contributing — the project accepts translations, bug reports, feature PRs, and testing help.

MeshCore Open on GitHub →

Support the Developer

If MeshCore Open is useful to you, consider supporting the project:

Solana: F15YanjZj96YTBtKJYgNa8RLQLCZkx5CEwogPWkqXeoQ
Monero: 453TxnpUqjkJtXxzdjMsrgERNkBRXEGamPbpC45ENrvKAk9tH7kZbxWF82Hz66etgDZyXFPEBU2JUEqhLeJyWt9kBvTVy5m
Bitcoin: bc1qh45x28v8dslcg4v4upmqd9g0mvc3lnyffmyzr5

New to MeshCore? Our getting started guide walks you through setting up your first node in 15 minutes.

MeshCore Open is a community project. NodakMesh is not affiliated with MeshCore Open or its developers — we cover ecosystem tools that make MeshCore more accessible. For more on the firmware these apps connect to, see our MeshCore v1.14.1 release post or our MeshCore deep dive.