HP-15c app has a cosmetic problem on newer iPhones

[anyfoo]

So I've since found out that portrait mode is broken the same way on my 11" iPad Pro 1st gen (I usually don't use the app's portrait mode on the iPad).

Since landscape mode works as well as on any other device I've tried (even better, because the digits fill out the virtual LCD frame more), I'm back to thinking that it's probably not too hard to fix portrait mode.