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What happens when you lose signal?
Message, share locations, and see your group on the map. No cell service or Internet connection required.
Free to download. No account required.
Works with supported MeshCore LoRa devices. See compatible devices →
Simple, even if you’ve never used LoRa
Your phone talks to a small radio. The radio talks to your group — no towers in between. Setup takes about 30 seconds.
- Phone Runs the Nelos app
- Bluetooth Links your phone to the device
- LoRa device Carries messages over the air
- Your team Everyone stays in the group
- Nelos connects your phone to a supported LoRa device over Bluetooth.
- The LoRa device sends messages and locations directly between the group.
- No cellular network, server, account, or Internet connection is required.
What are you using Nelos for?
However your family or group stays together, Nelos keeps everyone connected.
Family
Know where everyone is, even with no signal.
Festival
Keep your crew together when the crowd overwhelms mobile networks.
Community
Stay in touch with your group when mobile networks go down.
Camping & family trips
Enjoy the trip, not the signal bars.
Hiking & outdoor teams
See your whole group on the map, wherever the trail goes.
Remote places
Boats, remote camps, islands - anywhere towers don't reach.
Keep your family together
When there's no cell service, Nelos lets your family keep messaging and sharing locations through your own local network. Know where the kids are at the campground. Keep an eye on a parent out for a walk. See where the dog wandered off to - everyone shows up on one shared map, with their latest shared location.
- Message each other, even with zero bars
- See everyone's latest shared location on an offline map
- Add a small tracker for a child, pet, or relative - no phone needed
Explore further without losing the group
The moment your group spreads out on a trail, phones stop being useful for anything but photos. With Nelos, everyone in your hiking or outdoor group stays in touch and stays visible on a shared map - no cell towers required.
- Message the group and check in, wherever the trail goes
- See everyone's position on a shared offline map
- Works the same on a day hike or a multi-day trip
Stay connected where cellular coverage doesn't reach
A boat out past cell range. A remote camp with no towers nearby. An island with patchy or no signal. A small community without reliable mobile coverage. Nelos keeps people in touch in exactly the places phones normally go quiet.
- Message and share locations with zero mobile signal
- Send a Need Help alert with your exact location, one tap
- Works the same on a boat, a remote camp, or off the grid
It feels like the apps you already use
You use the app. Nelos handles the network.
Connect your device
Pair a compatible device over Bluetooth - no setup headaches.
Create a group
Start a private group for your family or team in seconds.
Start messaging
Chat with your group just like any messaging app.
See everyone on the map
See everyone's latest shared location, right from your phone.
One app for staying together
Everything your group needs, in one simple app.
Group messaging
Private chat with your family or team, no internet required.
Location sharing
See everyone's latest shared location on a shared map.
Worldwide offline maps
Download maps for anywhere in the world ahead of time, and use them with zero signal.
Need Help
One tap lets your group know you need help, and exactly where you are.
Device tracking
Add a small tracker for a pet, bag, or vehicle - no phone required.
iPhone & Android
One app, the same experience on either platform.
Works with the device you choose
Nelos runs on small radio devices that create their own private network for your group - no cell towers involved. It works with compatible MeshCore devices - so you can pick a device that fits your budget and needs.
Your own network, your own data
Nelos doesn't run a central server. Your messages and locations travel over your own devices' network - not through Nelos, not through the cloud.
- No account required
- No phone number required
- No central server storing your messages or locations
- Your data stays on your own network
Get your family or group connected
Free to download, no account required, works without cell service.