Some services such as ConnectEd and RAZ Kids doesn't launch the iOS app after upgrading to iOS 13. In iOS 13, the Safari web browser requests a desktop version of any website by default. You can turn this feature off manually by following the instruction below.
1. Go to the Settings on the iPad
2. Scroll down and select Safari
3. Scroll down and select Request Desktop Website
4. Turn off the All Websites under Request Desktop Website On