Off-Grid Radar · Earlier concept
This is an earlier idea, not a service. See the device in development or get updates.
The Pacific Crest Trail. Angels Landing. The 70-foot cliff in Moab. The campsite five miles from the nearest tower. The river run where the put-in is two-bar and the take-out is zero.
The earlier idea explored whether phones in a group could share check-ins beyond cell coverage. Off-Grid Radar is not available. Tripwire Recon is a separate game, not an outdoor safety tool.
The job
The earlier concept explored a phone-based approach for groups already carrying phones. It did not establish radio range, reliability, or an alternative to dedicated outdoor communications equipment.
The goal was to investigate sharing between group members’ phones. Hardware needs and service terms were not established.
A larger group was a networking idea to test, not a coverage guarantee. No phone-to-phone range or trail coverage has been established for this concept.
The intended design would share group check-ins and missed-checkpoint notices. Two-way communication and reliable alerts would need development and field validation.
Earlier design
The idea was to choose a route, checkpoints, and contacts before a trip. Those planning and contact features are not available in Tripwire Recon.
The proposed design would investigate local sharing between phones beyond cell service. There is no available off-grid group map, relay, or check-in network.
A missed-checkpoint notification to off-trail contacts was the intended feature. Delivery through a phone with service would need testing; no such alert path is available.
Possible future use cases
Common questions
No. This earlier concept is not a replacement for satellite communications, emergency equipment, or an outdoor safety plan. Tripwire Recon is a game and does not provide off-grid alerts.
There is no available Off-Grid Radar coverage on those trails. Range, relay delivery, and group density would need field validation. No per-trail coverage map is offered.
This earlier phone-sharing concept does not establish interoperability with dedicated radio networks. Any future hardware integration would need development and testing.
The proposed feature would notify chosen off-trail contacts after a missed checkpoint. It is not built or available; do not rely on Tripwire Recon to deliver a safety alert.
Tripwire Recon is a separate free location game. It does not include Off-Grid Radar or Group Radar. No outdoor-service pricing or operator deployment offer is announced here.
Tripwire Recon is a free iPhone location game. It does not provide off-grid check-ins or safety alerts. The device is our current focus.