There is only one app, but first you have to select the type: "Parent", "Shuttle Bus", or "Kindergarten". Next time, it will start with that type.
Children will be given a FRID IC tag and placed on a "shuttle bus" type shuttle bus to share GPS information.
The only information shared between parents and the school is the child's name. There is no sharing between parents and guardians, so only the nursery school has complete information about which child is on which bus.
On the shuttle bus, you can press the button to report the final check of your arrival to the park.