Sprit-Rechner is a free iPhone application developed by Rolf Warnecke in the Utilities & Tools category. With this app, users can calculate their average fuel consumption per 100 kilometers and the costs for 100 kilometers by entering the amount of fuel consumed, the distance traveled, and the total amount spent on fuel.

Once the calculation is complete, users can save it in the app's internal database by tapping the plus sign in the top right corner. By default, the current date is automatically added to the saved calculation, but users can modify it by tapping the corresponding field.

The app also provides a List feature, where users can access their saved calculations. These calculations are displayed in chronological order, with the most recent ones appearing at the top.

For users running iOS 7.x or iOS 8.x, the entire list can be exported as a CSV file via email using the standard account on their device. However, for users running iOS 8.x or higher, the entire list can be saved as an exported CSV file to their iCloud Drive in a dedicated folder.

If users encounter any errors or problems, they can easily report them by sending an email to