No cell service? Stay connected over LoRa. Message your team, share locations, find trackers, get Safe Zone alerts, and use offline maps.
Stay connected beyond cell coverage.
Nelos is an offline messaging, location sharing, and tracking app for families and small teams using MeshCore-compatible LoRa radios. Message your team, see everyone on a map, find trackers, and coordinate even when cell service or internet isn’t available.
No radio yet? Offline maps, location history, and personal waypoints work right away. Connect a MeshCore-compatible radio to unlock messaging, teams, trackers, and help requests.
STAY TOGETHER OFF-GRID
• See teammates and compatible trackers on one map
• Send team messages and direct messages over LoRa
• Track family members, pets, and personal belongings with compatible trackers
• Find a tracker faster with Find Mode
• Create Safe Zones and get alerts when a tracker leaves or arrives
• Look back at every alert in Activity
• Send help requests and coordinate responses with your teams
• Create and join teams offline using QR codes
READY FOR THE OUTDOORS
• Download detailed offline maps worldwide
• Mark campsites, meeting points, hazards, and other locations with waypoints
• Review the last 24 hours of location history
MORE WITH NELOS PRO
Unlock multiple active teams, unlimited trackers per team, unlimited offline maps, and up to 90 days of location history with a one-time lifetime purchase.
PRIVACY-FOCUSED
No account required. No central message server. No ads. Your location never goes to our servers: it is shared only with your team, over LoRa, when you choose.
Built for families, hiking, camping, outdoor adventures, travel, volunteer teams, festivals, and other off-grid situations.
COMPATIBLE HARDWARE
Off-grid communication requires MeshCore-compatible LoRa hardware. Download maps before heading out.
Location updates and message delivery depend on your devices, radio conditions, terrain, positioning availability, and permissions.
Help requests go only to members of your teams, not to emergency services or to Nelos. Nelos should not be your only means of communication or safety in critical situations.
Ratings & Reviews
This app has not received enough ratings or reviews to display an overview.
• Go to: a straight-line guide to a teammate, tracker, waypoint or Check in, with an alert when you arrive.
• Movement history: pick a time range, Smart GPS filter hides wrong points, share your route as an image, export GPX.
• Turn location sharing on or off for each team.
• MeshCore channels: mention someone, copy messages, see how a message was relayed.
• Better performance and longer battery life.
Version 2.7.2
The developer, The Quyen Le, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary based, for example, on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Provider
The Quyen Le
Size
77.2 MB
Category
Utilities
Compatibility
Requires iOS 15.1 or later.
iPhone Requires iOS 15.1 or later.
iPad Requires iPadOS 15.1 or later.
iPod touch Requires iOS 15.1 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
Apple Vision Requires visionOS 1.0 or later.
Location
This app may use your location even when it is not open, which can decrease device battery life.
