Support

Nelos is an offline-first team communication and coordination app. It lets a small group send messages, share live locations on downloadable offline maps, track people, pets, and gear, and coordinate Need Help signals over a LoRa mesh network using MeshCore or Meshtastic®-compatible devices - without mobile signal, accounts, or servers.

No. Nelos is designed to work when cell and Wi-Fi are weak or unavailable. Your messages and locations travel over your LoRa mesh network, not the internet.

Yes. Nelos connects over Bluetooth to a MeshCore or Meshtastic®-compatible LoRa node, which handles the actual radio transmission. Without a compatible device, the app cannot send or receive mesh messages.

No. Nelos is not a replacement for emergency services, satellite messengers, or professional rescue systems. It is a coordination tool for your own team when connectivity is limited. Always carry appropriate safety equipment and have a way to reach professional help.

Nelos uses your location only to show your position and to share it with team members you choose. Location is not collected or stored on any Nelos server. It is transmitted over your own mesh network only when you choose to share it. See our Privacy Policy for details.

Only if you turn it on. Background location sharing is off by default. When enabled, Nelos updates your location for your current team while the app is in the background - this works only while you are in a team and location sharing is on.

Updates are periodic, not continuous real-time tracking, and are sent only over your LoRa mesh device, never to a Nelos server. On Android you'll see a persistent notification while it's active. You can turn it off any time in Settings, and it may use more battery.

Nelos works with MeshCore and Meshtastic®-compatible LoRa devices that connect over Bluetooth. If you're unsure whether your device is supported, email support@nelos.app with the model and we'll help.

You can send feedback and diagnostic reports directly from within Nelos. Diagnostic reports include relevant device and application information to help us investigate issues faster.

You can also email support@nelos.app. Including your device model, operating system version, Nelos version, LoRa device model, and steps to reproduce the issue helps us investigate faster - a bug report template is below.