Show HN: Red Grid Link – peer-to-peer team tracking over Bluetooth, no servers
Sentiment Mix
Geography
Expert Signals
redgridtactical
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Hacker News
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AI-Generated Claims
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If my group splits, nobody knows knows where anyone is until you regroup at camp or at your destination.
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You can buy Garmin radios or try to set up an ATAK, but ATAK is Android-only and assumes you have a TAK Server running somewhere to make use of all of the functionality.
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I just wanted two iPhones to share their location directly over Bluetooth when cell coverage was lacking.Red Grid Link does that.
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Start a session, and anyone nearby running the app shows up on your offline map.
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When they walk out of range their marker stays as a "ghost" that slowly fades.The hard part was making sync reliable over BLE.
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