A simple touch-friendly RPN calculator with accurate decimal arithmetic
Vote: 4.5/5 (90 votes) Platform: Android
droid48sx is an emulator of the HP48sx, a vintage RPN calculator
Vote: 4.0/5 (48 votes) Platform: Android
RpnCalc is the best RPN calculator on the Android Market
Vote: 4.5/5 (74 votes) Platform: Android
HP-42S Simulator: advanced scientific programmable RPN calculator
Vote: 4.5/5 (101 votes) Platform: Android
Emulator of Electronika MK 61/MK-54 Soviet-Russian RPN programmable calculators
Vote: 5.0/5 (40 votes) Platform: Android
Application to tweak and improve sound quality
… Anyone with a Windows PC, with any OS, has a built-in calculator, just in case you didn't know …
PRO: Several modification options include a choice of skins and window sizes.
CON: Modern operating systems may not be able to recognise this software.
Vote: 6.4/10 (122 votes) Platform: Windows
Online calculator with regular scientific calculator functions
Vote: 6.8/10 (115 votes) Platform: Windows
One use of this free app, and you’ll never want to be without it
Vote: 4.0/5 (91 votes) Platform: Android
Keep Safe and Hide Pictures, Videos and Lock apps behind Calculator!
Vote: 4.5/5 (95 votes) Platform: Android
Simple calculator, ideal for everyday calculations
Vote: 4.0/5 (85 votes) Platform: Android