Privacy
Last updated 29 October 2026.
Short version: Blind Rally has no accounts, no analytics, no ads, no cookies and no server of its own that receives your data. Your stats live in your browser. Your location is used only while you play, only in the foreground, and never leaves your device except for the map and routing lookups below.
Location
- We ask for location permission only when you tap Use my location, or when a rally starts and needs to detect your arrival.
- Your position is checked only while the game is open and visible. When you switch apps or lock your phone, GPS checking stops. There is no background tracking.
- During a rally your path is recorded on your device so the results screen can show where you went and score how closely you followed the route. A simplified copy is kept with that rally in your history (below). It is never uploaded.
- When driving, your current position is sent to the Overpass API about once a minute to look up the road's speed limit.
- When you arrive at a random spot, its coordinates are sent to the Overpass API (or Wikipedia, if Overpass is busy) to see what's nearby.
- To find a destination and a route, your starting coordinates are sent to the public OpenStreetMap services listed below. Nothing identifies you in those requests beyond what any web request reveals (such as your IP address).
What stays on your device
Stored in your browser's local storage, and nowhere else:
- Settings (mode, difficulty, units, distance, vibration, screen-awake).
- Stats: completed and abandoned counts, best times, your last 30 rallies (destination name and location, time, score, difficulty, date, the briefed route and a simplified version of the path you took) and identifiers of destinations you've discovered so you aren't sent to the same place twice.
- While a rally is in progress: the hidden destination, so you can recover from an accidental refresh. It is deleted the moment the rally ends.
Because history includes routes and paths, it effectively contains places you've been. It stays in this browser only. You can erase everything in Settings → Erase all local data, or by clearing site data in your browser.
Third-party services
| Service | What it receives | Why |
|---|---|---|
| OpenFreeMap (tiles.openfreemap.org) | Map tile requests for the area being shown | Drawing the 3D map |
| Wikipedia geosearch | Your start coordinates and search radius (or points around it, for cities), or a random spot's coordinates, only if Overpass is unavailable | Fallback for finding places and towns |
| Overpass API (overpass-api.de) | Your start coordinates and search radius; a random spot's coordinates when you arrive there; while driving, your current position about once a minute | Finding public places and towns nearby; what's around a random spot; road speed limits |
| OSRM routing on FOSSGIS servers (routing.openstreetmap.de), OSRM demo server | Start and destination coordinates | Calculating the route |
| Nominatim (nominatim.openstreetmap.org) | Only the text you type into the start-point search | Finding a place on the map |
| Wikidata, Wikipedia, Wikimedia Commons | The discovered destination's Wikidata/Wikipedia identifier | Showing a photo and description after you arrive |
Each service is operated by volunteers or non-profits under its own privacy policy: OpenFreeMap, OpenStreetMap Foundation, FOSSGIS, Wikimedia Foundation.
Hosting
The site is served as static files. The host (for example Cloudflare Pages) may keep standard request logs; Blind Rally adds no tracking of its own.
Sharing
The Share button uses your device's share sheet. It shares an image card with your grade, time, the destination's name and the shape of your route and path (no map or coordinates), plus a short text line. Nothing is sent anywhere until you choose where to share it.
Safety
Play responsibly. In driving mode, a passenger must operate the phone at all times. Obey traffic laws, respect private property and stay aware of your surroundings.
Contact
Blind Rally is open source under the MIT license. Questions or concerns can be raised on the project's issue tracker.