Frequently asked questions
What people ask us most about prices, reports and your data.
Is Gastione free? Do I need an account?
It is free and has no accounts. We never ask for your name, email or phone number, and the app has no ads.
Which phones does it run on?
For now only Android, as an APK file you download on this site. When you open it, Android will ask you to allow installing apps from that source. There is no iPhone version yet.
Where do the prices come from?
Drivers report them from the station. Every price shows when it was updated and whether it is verified. The stations (more than 1,100) come from OpenStreetMap and Overture Maps, and the list refreshes by itself.
What do green, orange and red mean?
Green with ✓: verified, meaning two people reported it today (or Google posted it within the last 2 days). Orange with ?: not verified, because only one person reported it or it is a few days old; double-check it before you go. Red with —: nobody has reported a price there. Indigo: the cheapest among the stations you see.
Are prices per liter or per gallon?
Per liter, in US dollars, the way Puerto Rico stations post them. Distances are in miles.
Can I rely on a price?
It is a guide, not a guarantee: a price may have changed since it was reported. That is why each one says when it was updated. Check the price at the pump before you fill up.
How do I report a price?
You have to be at the station, within 150 meters. Open Report, take a photo of the sign with the app's camera, the app reads the price, you confirm it (or type it yourself) and it is posted. You can report Regular, Premium and Diesel.
Why can I not upload a photo from my gallery?
So that nobody reports with an old photo or one from another station. The photo has to be taken in the app, right then and right there. We also reject fake locations and prices that are not reasonable.
Who sees my photo?
Nobody else: the photo is never shown to other users. We strip its hidden data (such as GPS), use it to read the price, and delete it after 30 days.
Why does the app ask for my location?
Only while the app is open: to show you nearby stations and to check that you are at the station when you report. To search, the app downloads the list and searches it on your phone, so your search location is not sent to our server. If you would rather not share it, pick your town.
Does it work without internet?
Yes, with the prices it saved last time, and it tells you honestly when it last synced. If you report offline, the report waits and is sent when you have signal again.
Will the app tell me when a price drops?
Yes: it tells you when a station near you drops its price by at least 2 cents, while the app is open. You turn it on or off in Settings.
My station is missing, or it is in the wrong place.
Open data sometimes has mistakes. Write to us with the name of the place and what is wrong, and we will fix it.
How do I erase my data?
Write to us with the number shown in Settings (for example, #00042) and we erase everything tied to your install. If you just uninstall the app, what is left on the server deletes itself on the schedule in the privacy policy.
Another question? Write to [email protected].