This issue only needs to be tested in 1 device. In web as admin, go to Site administration > Users > Define roles. Edit the student role and remove the capability mod/scorm:savetrack. In a course, create a SCORM with tracking (e.g. the Golf one). In the app, login with a student. Open and play the SCORM. Finish the SCORM and go back. Check that no error was displayed and the SCORM doesn't say there is offline data. Please notice that there is a minor difference with LMS, in LMS you will now have an attempt with grade 0 (if you didn't have one already), in the app you won't have a new attempt (so you might see that you have no attempts yet). This is a technical limitation, the app cannot create attempts without the capability.