Real-time GPS positions. Proximity alerts. Zero crossed-fire.
A live map of every hunter in your party.
Most hunting accidents happen because someone didn't know another hunter was downrange. Quarry's live map puts every active member of your party on the same screen, with a warning the moment two hunters get close enough to be dangerous.
How it works
Each hunter taps Start hunt in the app. Quarry then writes a GPS position every 15 seconds while you're moving and every 5 minutes while you're sitting. Locations are encrypted end-to-end with Supabase Row-Level Security — only your hunting party sees you, never the public.
Battery & data usage
Quarry was built for an 8-hour Drückjagd, so battery is non-negotiable. We use adaptive throttling (movement-based), the Screen Wake Lock API, and dynamic accuracy — typical drain is under 8% per hour on iPhone 13 and similar Androids.
Privacy by design
When you end the hunt, your position is wiped from the live table. We never write tracks to a permanent log unless you opt in. Servers are in Frankfurt (eu-central-1) and we're fully GDPR-compliant.
FAQ
- Does the map work without mobile data?
- Map tiles cache automatically the first time you open them, and your own position works offline. Other hunters' positions need any cell signal, even 2G, to sync.
- Can a hunter hide from the party?
- Yes. Tapping End hunt removes you from the live map immediately. Logging out does the same automatically.
- Is this legal in my country?
- GPS sharing within a private group is legal everywhere we operate (AT/DE/CH/RS). Quarry never shares positions with non-members, so there's no public broadcast.
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