I can share some information about syncing third-party apps in QuickBooks Online, @hi11_2 just me.
I suggest checking out the Shopmonkey app Customer Support on how to integrate the app with QuickBooks Online (QBO). You may also verify with them how your deposits will sync to your QuickBooks. To check for any third-party apps app that works with QBO, go to this link: Find the right apps for your business.