FamilSoft respect users privacy so take it very carefully.
For users privacy, FamilSoft keep several rules.
1)FamilSoft seek consent for player to collect users information.
2)Only minimal information for playing.
3)FamilSoft manages users information safty.
Which information FamilSoft collect?
1)Account ID and 2)In game purchase.
Purchase list and player data will preservate even reinstall the game.
social login account and guest login account is different account so 2 account never share the player data.
Precautions
Case guest login, be careful for forget of password and don't tell it to other person