Just wanted to throw this out there and hope someone may run with it. The TI 83/84 calculators are used in many colleges. There are many calculator apps, but I haven’t found any that seem to truly emulate this one. In top of that, there is a need to have this that’s fully accessible with VoiceOver. For a student that is blind, the same calculator with a speech add-on costs around $600. Thank you.
It’s a good idea but it would have to come from Texas Instruments for it to be called a TI-83/84 - any individual developer trying this would probably find themselves on the receiving end of legal letters, rightly or wrongly.