Buy Premium for 4.99 euros / month

Unfortunately, you cannot buy the subscription directly in the Apple app. This is how you have to proceed:

Log in to the web version: https://app.transpashare.com. Unfortunately, you have to log in again with your user.
Select the "Profile" menu item.
Select the Buy Premium feature and follow the instructions.
After successful purchase, you have to restart the Apple app and can then use Premium in the Apple app.

cancel subscription

To cancel the subscription, you must proceed as follows:

Log in to the web version: https://app.transpashare.com. Unfortunately, you have to log in again with your user.
Select the "Profile" menu item.
Select the "Cancel subscription" function and follow the instructions.

Change Payment Method

To change the payment method, you must do the following:

Log in to the web version: https://app.transpashare.com. Unfortunately, you have to log in again with your user.
Select the "Profile" menu item.
Select the "Change payment method" function and follow the instructions.