Support
Need a hand with Petra? We usually reply within two business days.
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Frequently asked questions
How is L/100km worked out?
Petra uses the full-to-full method: it adds up the litres you put in since your last full tank (including any partial top-ups) and divides by the distance travelled. Fill to full and turn on “Filled to full” for the most accurate number. Your economy appears after your second full tank.
Should I enter the price in dollars or cents?
Cents per litre, exactly as shown on the bowser — for example 189.9. Add shopper-docket or fuel-card discounts in “Docket discount” (for example 4).
I logged a fill-up with the wrong odometer.
Open History, tap the fill-up and edit it. Petra warns you if a reading is lower than your latest one, which usually means a typo.
My servo isn’t in the brand list.
Tap “Other” in the station section and type the name. Petra remembers it in “Recent” for next time.
Do reminders send notifications?
Not yet. Upcoming and overdue reminders appear on your Home screen and in Reminders, marked “Soon” within 30 days or 1,000 km.
Will my data move to a new phone?
Yes. Everything is saved to your account. Install Petra on the new phone and sign in with the same Apple, Google or email account.
How do I export my data?
Go to Profile → Export all data (CSV). You can share the spreadsheet to email, Files or your accountant.
I forgot my password.
On the sign-in screen tap “Forgot password?”, enter your email and follow the link we send you.
Deleting your data or account
- Delete all data: Profile → Privacy & Data → Delete all data. Removes every vehicle, fill-up, service and reminder but keeps your account.
- Delete account: Profile → Privacy & Data → Delete account. Permanently deletes your account and everything in it. This can’t be undone.
Can’t sign in any more? Email us from the address on your account and we’ll delete it for you.