I’m moving over to a new Apple account and although I was pleasantly surprised to find out I can log back into my account I’ve found I have to lose all my chats and wait till my previous subscription ends on my old Apple account to take out a new subscription. Grindr should dissociate Apple accounts with Grindr accounts as many people using Grindr may not be able to always sign in with the same Apple account. Also sync messages between Devices and back up chats on your servers not on iCloud.