For our apps, DLS 20 and Score! Match you will need to either link your game profile to Facebook or use the new "Sign in with Apple" option (Apple iOS 13.0+ only) which will allow you to backup, restore and transfer your save data to other devices. Save data is not linked to your Google account or iCloud account.
For our apps, Score! Hero and Dream League Soccer, you can only use iCloud (if you are on iOS) or Google Play Saved Games (if you are on Android) to backup, restore and transfer your save data to other devices. Save data and in-app purchases cannot be transferred across platforms e.g. Android to iOS or vice versa and no other method of cloud saving is supported, for example Facebook or Game Center.
For our app, 8 Ball Hero, you will need to link your game profile to Facebook in order to backup or transfer your save data to other devices.
How to setup a "Sign in with Apple" account: https://support.ftgames.com/hc/en-us/articles/360009450097-How-do-I-setup-a-Sign-in-with-Apple-account-
How to setup a Google Play Saved Games account: https://support.ftgames.com/hc/en-us/articles/360000603398-How-do-I-setup-a-Google-Play-Games-account-
How to setup an iCloud account: https://support.ftgames.com/hc/en-us/articles/360000613657-How-do-I-setup-an-iCloud-account-
How to setup a Facebook account: https://www.facebook.com/help/188157731232424