What is the difference between a day fee and a day pass?
Updated
Please note that a "day fee" and a "day pass" are two different things:
A day fee is automatically charged once you exceed 99€ for S-tier vehicles, 110€ for M-tier vehicles and 120€ for L-tier vehicles, while driving without a pass. This is to prevent you from paying more than necessary. The standard day fee includes 100km and the price varies depending on which vehicle tier you have chosen.
A day pass is a pass that you can purchase in the app yourself. You have the flexibility to choose from a wide range of durations and the number of included kilometers to suit your needs.