PockEmul

PockEmul is an emulator of vintage pocket computers and scientific calculators from late 70s' to end 80s'.

It adapts its behavior depending on the screen size. it is usable both on iPhone and iPad. 
PockEmul comes with 8 models fully emulated:
    - The scientific calculator HP-35, HP41C (HP41CX model), HP-48GX, FX 8000G, TI 57.
    - The pocket computer Sharp PC 1245, Sharp PC 1350, Sharp PC 1500 and Tandy PC-2. 

A single subscription fee give access to all functionalities and emulated models. 

Current available models are :
   - Casio PB-1000, PB-1000C
   - Casio PB-2000C, AI-1000
   - Casio FX-890p, Z-1, Z-1GR
   - Casio FP-200, FP-200Jap
   - Casio FX-9000p
   - Sharp PC 1250, PC 1251, PC 1251H, PC 1255
   - Sharp PC 1260, PC 1261, PC 1262
   - Sharp PC-1280, PC-1280Jap
   - Sharp PC 1360, PC 2500
   - Sharp PC 1401, PC 1402, PC 1403, PC 1403H, PC 1421
   - Sharp PC-1425, PC-1425Jap, PC-1450, PC-1450Jap, PC-1475, PC-1475Jap
   - Sharp PC 1500, PC 1500jap, PC 1500A, PC 1501,CE 150
   - Sharp PC 1600, CE 1600p
   - Sharp PC-E500, PC-E550, PC-E500S, PC-U6000, PC-E220, PC-G850V
   - Sharp Printer CE-126P
   - HP 41C Printer (non-HP-IL) 82143A
   - HP-335, HP 11c, HP 12c, HP 15c and HP 16c which are RPN calculators.
   - TI-74, TI-95, CC-40, TI-42, TI-55 and TI-58 calculators. PC-100 Printer
   - Nec PC-2001, General LBC-1100, Sanco TPC-8300, National JR-800, Canon X-07, Epson HX-20
   - Elektronika MK-85 and MK-85M
   - Panasonic HHC

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/