Sure, you could just get the OBSCURA calculator with PhotoMath built-in, but this student decided to take things into his own hands, literally. He basically started with a basic Texas Instruments Ti-83 Plus calculator, gutted the existing internals, and then placed an iPhone 6s inside.
Unfortunately (or fortunately), this mod was pulled off crudely, as parts of the keypad were removed entirely, thus exposing the iPhone 6s’s screen for everyone to see. There also does not seem to be direct access to the power button, which means you’ll need a power bank nearby to plug it in when turned off. With some 3D-printed components, cleaning this up shouldn’t be an issue, possibly even with a newer SIM-equipped iPhone SE 3 or iPhone 13 Mini.
- Permitted for use on SAT, PSAT/NMSQT, ACT, AP, IB and Praxis exams
- Offers large 64 x 96 pixel, 8 x 16 display; 24KB of RAM; and 160KB Flash ROM memory
- Also graphs 3 recursively-defined sequences; TVM, cash flows, amortization, and complex numbers

This was pulled off horribly. Idea A+; Execution F-. This wouldn’t pass even in the presence of the dumbest teachers,” said one commenter.