11. Using Xcode to test an iOS app

I’m trying to test an SAB app on my device (iPad) without having to enrol in the Apple Developer program. Is this possible? (The app works on the simulator.)

I referred to the SAB manual: https://software.sil.org/downloads/r/scriptureappbuilder/Scripture-App-Builder-03-Installing-and-Building-on-Mac.pdf

It seems to be possible:
11. Using Xcode to test an iOS app:
→ at step <7. Find the IPA file to add. Click Open after you have selected it.>, I get this error message:

NOTE: the file I opened is the app created in the ‘Run iOS Simulator’ Window.