Yes, you can restore and use all In-App purchases, including subscriptions, across multiple devices as long as you are using the same Apple ID to both INSTALL ScoreCam and Restore.
Here are the steps to restore an In-app purchase:
- Open ScoreCam
- Tap on the gear icon (aka Settings)
- Tap "Purchase (w/ Free Trial) or Restore"
- Tap the "Restore" button on top right of screen
Here is a list of the common issues and how to resolve them:
1) You downloaded the app using a different Apple ID and can't restore using Apple ID used to purchase ScoreCam:
- Remove the ScoreCam app from the device
- Sign out of the iTunes & App Store account (see image below)
- Sign into the iTunes & App Store account with the Apple ID you used to purchase ScoreCam
- Re-install ScoreCam
- Restore your purchases
2) Someone in your family has logged in with a different Apple ID: See steps above.
More information here: https://support.apple.com/en-us/HT203993
Other things to try:
- Force close the ScoreCam app: https://support.apple.com/en-us/HT201330
- Restart your device: https://support.apple.com/en-us/HT201559
- Uninstall, Restart, Reinstall (if all other options fail to work)