Hi!
I'm teacher and I tested with several of my students the DrawShape method of the Canvas object on serveral models of IPhone.
Unfortunately it doesn't work on any of the models tested.
The same application works impeccably on Android. May you please check that issue?
Thank you!
Which version of the companion are you using? This is a known issue in 2.60, which is published on the App Store, but the new beta version on Apple TestFlight should have this issue resolved.
You can also send us a test project and we can test it on our end with the latest development versions.