i need to know what database Quickbooks use ?

Thank you for reaching out to us, @A7med.

Let me share with you the apps that you can use to pull some data.

QuickBooks have supported third-party apps that can help you with your business. I'd recommend you check apps for QuickBooks Desktop and look for the best app that suits your need.

To integrate QuickBooks data into another app, it would be best to contact the app provider and ask them to reach out to the Developer team in order for the app to be integrated.

Here's how to contact them:

1. Go to https://desktop.apps.com/home.
2. Locate the app.
3. In the upper right of your screen, look for the contact number of the developer.

For future reference, I would also recommend you check our Help article. This can help you resolve issues with your QuickBooks account.

Feel free to reach back out to me if I can be of more help with integrating data. I'll make sure to get back to you as soon as I can.