Does QB online support customized apps?

Hello there, @essenkima.

Thank you for reaching out here in the Community about integrating a third-party app. I can provide information about syncing apps with QuickBooks Online (QBO).

Third-party applications integrated with our program are available in the App Store within QuickBooks. We can go to the Apps menu and find apps from there.

Here's how:

1. Go to the Apps menu.
2. In the search bar, type the name of the app.
   
3. Click the program that you want to integrate.
4. Select Get app now.

Also, you can check this link for app collections reviews in QuickBooks: https://apps.intuit.com/app/apps/home.

You can visit these articles to remove and integrate third-party apps in QBO:

• Transfer app ownership or disconnect apps
• Integrate apps in QuickBooks Online

Let me know if you have other questions about integrating an app into QuickBooks. I'm always here to help.

@essenkima 

Which customized apps do you mean?