Meshtastic App

Overview
The Meshtastic App is the official companion application for Meshtastic devices, developed and maintained by the Meshtastic open-source project (meshtastic.org). It is required for initial setup of any Meshtastic-firmware device.
Platforms & Availability
iOS: App Store (free)
Android: Google Play (free)
Web: client.meshtastic.org - browser-based, connects via USB serial (Chrome/Edge)
Connection Methods
BLE (most common for mobile)
Wi-Fi (for nodes with Wi-Fi capability, e.g. ESP32 devices)
USB serial (web app via Chrome/Edge)
Features
Node list with signal, battery, and last-seen status
Direct and channel messaging
Map view with node positions
Full device configuration: region, modem preset, channels, power settings
Channel management (import/export via QR code or URL)
Telemetry display (battery, environment sensors if equipped)
MQTT configuration for internet backhaul
Required For
All initial Meshtastic device setup
Setting region (e.g. US, EU_868)
Setting modem preset (LongFast, MediumSlow, etc.)
Configuring channels and channel keys
Web App
The web app at client.meshtastic.org provides full configuration capability from a desktop browser via USB serial - useful when a mobile device is unavailable or when doing detailed configuration with a keyboard. Requires Chrome or Edge (WebSerial API).
Cost
Free and open source.