Now available on iTunes: HP Prime Graphing Calculator iOS app

[dbbotkin]

(01-05-2016 09:34 PM)Kevin Wrote:  This excellent emulator works well on both my iPad 3 and iPhone 6* but when I try and install it via iTunes on the old iPhone 4 (IOS 7), I get no visible keyboard appear.
The keys positions if guessed at are responsive to touch but I'd like to actually see them!

Any ideas?

*The iPhone6 emulator is so fast that a huge series (see attachment) that takes around 4 seconds on the real calculator is finished in half that time on the phone.

Yeah, the "best practice" in iOS development is to provide for backward compatibility in things like screen layout--there are settings in the Xcode (the SDK) to support this. The exception being, that the 'new' program needed features only available in a later OS.

iOS 7 is like a dinosaur in comparison, particularly in the lower screen resolution that is supported.

Hope this helps,
Donal