App doesn't work on old 32bit iOS devices - will it on 64bit or newer ones?

[P5music]

My CN1 app completely works on the simulator, and it works on Android devices except for filesystem access (but I did not work so much on it, maybe it could work).

What I care is the iOS system.

Some tests have been performed on this device

iPad 2 - 2011

Model MC769TY/A

iOS version 9.3.5

The user interface is garbage, not only my special class CommandDialog does not work (buttons do not work), but the buttons with the Flamingo icons do not show anything, they are white or they show  some little part of a huge icon that can be imagined overflowing the button area. I could not check yet whether the filesystem access is working or not.

So now I wonder if it could work:

-on a 64bit device

-on a more recent iOS version

-on the iOS simulator with a maven compilation and XCode

But is it possible? or it is certain that the result is the same?

I have to know in advance because I have no more time to waste.

Thanks

[Shai Almog]

I'm pretty sure the results would be the same except for the portions related to HTML which might be different as Apple migrated to a different browser in newer versions.

If you can break this down to case by case with screenshots we might be able to point you in the right direction.