General Product information:
1. How can I transfer my Cleaner One Pro license to another device?
2. How can i upgrade my license from a 1-device to a 5-device subscription?
3. I already purchased Cleaner One through the App Store, do I need to pay extra to upgrade to Cleaner One Pro?
4. I receive an error message “License Key Already in Use” when activating my subscription. What should I do?