Are you aware of any app/webpage with the current and reliable petrol/diesel prices near our location in Switzerland? I mean something that is not based on a community of users (like Waze), which are often inaccurate.
When I had a subscription for Mazda connected services, the prices at nearby petrol stations in Switzerland were correct, thus I assume there is some database (most likely no free) updated directly by petrol stations. It was especially convenient at long travels across different countries to optimize the petrol cost along the way.
I am aware of Fuel Flash, but its database doesn’t include Switzerland.
Of course the most convenient would be to have it integrated with google maps/Android auto.