Restore In-App Purchases

If you install CALC 1 on a device other than the device you used to make the purchase, you can restore the purchases. For example if you have an iPhone and an iPad and you made you purchase using the iPad. Then you use the restore to enable the purchase on the iPhone. You can also make the purchase on the second device and the App Store will inform you that you have purchased the item and ask you if you want to download it again for free.

Purchases that you have made are indicated by the check marks.