GPS Mobile — Help

Browser Compatibility

iPhone / iPad

✓ Safari — recommended, full GPS access
~ Chrome (iOS) — works but may be less accurate
~ Firefox (iOS) — works but may be less accurate
✗ In-app browsers (Instagram, WhatsApp, etc.) — GPS blocked, open in Safari instead

Android

✓ Chrome — recommended
✓ Firefox — works well
✓ Samsung Internet — works well
✗ In-app browsers — GPS may be blocked

Desktop

~ Desktop browsers use Wi-Fi / IP location — much less accurate than phone GPS
✓ Works fine for viewing sessions and the lobby

Allowing GPS — iPhone (Safari)

If GPS is blocked, Safari will not ask again automatically. You need to re-enable it in Settings:

Open the iPhone Settings app
Scroll down to Privacy & Security
Tap Location Services
Scroll down and tap Safari
Set to While Using the App
Return to this page and reload

Allowing GPS — Android (Chrome)

Tap the lock icon or ⓘ in the address bar
Tap Site settings
Tap Location
Set to Allow
Reload the page

Using GPS Mobile

Your name — Enter it on the start screen. It appears on other users' maps when you share your location.

Start GPS — Tap 📍 Start GPS and allow location access when prompted. The dot in the top bar turns green when a fix is acquired.

Stats strip — The bar at the bottom shows speed, altitude, and accuracy. Tap it to expand the full dashboard and speed/altitude chart.

Layers — Tap ⋮ More → 🗺 Layers to switch between Map, Satellite, Hybrid, and NASA daily imagery.

Compass — Appears top-right once your device has a heading. Tap it to switch between North-up and heading-up navigation mode.

Sharing Your Location

Tap ⬡ Share in the bottom bar. A session is created with a unique link and a random name (e.g. "Red Fox").

The session name is locked while sharing to keep the lobby listing consistent. It unlocks when you stop.

Copy Link — copies the session URL to share via message or QR code
QR Code — tap to show a scannable code
Stop — ends the session and removes you from the lobby

When someone opens your share link they can join and see each other in real time on the map.

The GPS Lobby

📡 GPS Lobby lists all currently active sharing sessions. Anyone can join a session from here without a direct link.

Sessions are automatically removed when you tap Stop or after 10 minutes of inactivity.

Dropping Pins

Tap 📍 Pin to drop a pin at your current location. You can add a label and optionally set an alert radius — if another participant enters that radius you'll get a notification.

Recording a Track

Tap ⋮ More → ⏺ Track to start recording your route. Tap again to stop. Export the track as KML (Google Earth) or GPX (most GPS apps) via ⋮ More → ⬇ Export.

📍 Back to GPS Mobile