Earlier platform concepts
We explored how phones, wearables and fixed sensors might share information. None of these ideas is a working safety service.
We're now developing a small device you can clip on. See the current design.
What existed or was proposed
Separate free game
Tripwire Recon does not include radar, check-in alerts or safety coverage.
We considered a device that could sense heart rhythm, movement and surroundings. It does not exist as a usable safety feature.
We considered sensors for places phones might miss. None have been deployed as a product.
Earlier plan
01 · Notice
Test phone sensors
We considered movement, sound and location as possible inputs. Playing the game is not consent to a safety service.
02 · Share
Test links between devices
Our timing method might help nearby devices communicate. It still needs field testing, especially where cellular service is poor.
03 · Alert
Test missed-arrival alerts
We considered a message to a trusted contact after a missed arrival. This feature is not available.
Earlier audiences
The proposed device is separate from the ideas described on this page.
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