The name of your Android or iOS app can only be changed with an App update. To alter the name of your Apps please open the Appkiosk overview and look for the respective entry.
Click on the "tasks" Button on the right side and select the "Rename" Option.
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Enter the new name and select the "Save Appkiosk" option to rename your Appkiosk.
Present Apps will be updated with the next update recieved.