The option to update Transactions is missing from the iPhone app, is this intentional? I can only update My transactions via the browser app.

Welcome to the Community, @sfadden. I'll share some troubleshooting steps to fix the issue of your QuickBooks Online mobile app.

When a device's cache is stored, it can trigger a system issue. As a result, let's refresh the data.

Here's how:

1. Tap the Menu icon.
2. Select Help & Feedback.
3. Tap Refresh Data and then select Refresh.

After that, try updating your bank transactions once more.

You can also check this article and compare the mobile app features: Compare mobile app features.

Then, you'll need to log in using a web browser to categorize the transactions. I've included this article as a resource for you: Categorize and match online bank transactions in QuickBooks Online.

Let me know if you have additional questions about updating your transaction using your mobile app.