Tankalarm is an app available in Germany that is designed to make refueling easier. It often happens that you have to refuel and therefore you need to get information about the current fuel prices. However, there are actually better things to do than looking up which petrol station is cheapest at the moment in a tank app.
For this reason I have developed the app Tankalarm. Tankalarm allows the user to set a certain price at which one is willing to refuel. The app then checks the prices of fuel at nearby petrol stations at an interval determined by the user. If a petrol station is below the limit set by the user, Tankalarm alerts the user with a notification. So that the user can always fill up cheaply.