If you're testing out Rydoo on our Sandbox environment, this is also possible via the Mobile app. Just follow the following 3 steps:
Step 2: While logging in you need to provide +sandbox at the end of your account's email address in order to connect the app to our Sandbox environment.
Step 3: Continue with the log in process by providing your password you use to log in on https://sandbox-accounts.rydoo.com/.
NOTE: This process can only be done once and will lock the app to a specific environment. If you like to switch back to the production environment, you need to delete and reinstall the app.