In the app, tap on 'tickets' at the bottom of the screen. Click on your active ticket, then on 'Stop parking'.

Here you can also extend your active ticket as needed.

IMPORTANT: When parking, you set the expected parking duration using the slider or the date (iOS) or the clock icon (Android). After this time expires, your parking session will be automatically ended by us.
Setting the parking duration at the beginning is important to ensure you have a valid ticket. If you do not set the time, your parking ticket will likely be stopped shortly after it starts.