@got.stucco We understand this has been frustrating, and we want to assure you that we're here to help. The QuickBooks Online Mobile App is designed to be compatible with iOS versions 16.0 and above, so it should work with your iOS 18.5 update.

We've passed your issue to our Next Level Help team, who will carefully review your Community comments and support history to understand what's happening. You can expect to hear from one of our experts soon regarding next steps.