Hello, richard.
QuickBooks doesn’t have a way to go back to the last version of the mobile app after it’s updated. Updates are created to make the app work better, fix problems, add new features, and improve security. Once the app is updated, older versions are no longer available because they’re not supported. This is common with most mobile apps, as the goal is to provide users with the best possible experience.
If you're having trouble with the app after an update, try to check for newer updates, as they often release fixes quickly. If the problem persists, use the QuickBooks web browser version as an alternative.
Feel free to reply below if you have further questions.
