AuthCat is privacy focused. AuthCat does not collect any usage data or analytics information. None of your data in AuthCat ever leaves your devices, unless you turn on iCloud Sync, or export the data in encrypted format.
AuthCat can use iCloud to securely back up 2FA codes, and make them available on all your devices. iCloud encrypts your data in transit and at rest on Apple’s servers. Using iCloud with AuthCat is entirely optional, and by default it is turned off.
If you turn off iCloud Sync in the AuthCat app, all your 2FA data will be removed from iCloud. Furthermore, I have no access to any of your data in the app or iCloud.