Help
How GasTab connects
Make sure Bluetooth is turned on. Do not tap Connect next to the adapter. GasTab connects by itself. On the Live tab, tap Start, then turn the engine on. The status goes Scanning, then Connecting, then Ready. Wait until RPM appears, then drive.
The first time you tap Start, allow Bluetooth, then Location. Location may ask twice: While Using the App, then Always. Always is better if GasTab keeps recording while you use other apps.
Bluetooth unauthorized?
iPhone Settings → Privacy & Security → Bluetooth — turn GasTab on (it appears after at least one Live → Start attempt).
No adapters found?
Open GasTab, tap Start, then start the engine. Confirm iPhone Bluetooth is on, the adapter is seated, and the phone is near the dash.
Stuck connecting?
Forget the adapter under iPhone Settings → Bluetooth, unplug ~30 seconds, replug, then Live → Start and start the engine.
Ready but no RPM/speed?
Start the engine if you have not yet, wait a few seconds. If values stay blank, send Scott the Connection Info from Live.
Are you losing trips?
→ Hit STOP on the app before engine off.
Trips shorter than one minute are not saved.
If you forget and turn the engine off first, leave GasTab open until the trip shows under Trips. Swiping it away before that throws the trip away.
Canada
On a Canadian iPhone, GasTab shows kilometres, litres, L/100km, and CAD. Set your pump price in GasTab Settings (Live → gear) or on a trip’s fuel price card. With a postal code saved, the app can suggest a Statistics Canada monthly average for the nearest covered city (not a live pump price).
For exact fuel spend, log fill-ups under Gas Receipts after you sign in — following trips use that receipt price. OBD2 adapters sold in Canada work the same as in the U.S.
Australia
On an Australian iPhone, GasTab shows kilometres, litres, L/100km, and AUD. Set your pump price in GasTab Settings or on a trip’s fuel price card, or log fill-ups under Gas Receipts for receipt-based trip costs. There is no regional auto pump-price feed yet.
Override region in GasTab Settings → Region and units (Automatic / United States / Canada / Australia).
Still stuck?
Problems connecting? Take a screenshot or Tap Copy on the live screen, then email support@gastab.app.