RPN-67 Free is the free version of RPN-67 Pro, the first complete simulation of Hewlett-Packard's HP-67 legendary programmable calculator for iOS. Produced from 1976 to 1982, the HP-67's capability to store programs on magnetic cards, wide array of functions, merged keycodes, indirect addressing and other enhancements made it a huge success among scientists, engineers and other professionals. Thousands of programs were written for it. RPN-67 Free allows you to run, but not modify, a sample program card. It also lacks program creation and the card management features of the Pro version. Apart from these restrictions, RPN-67 Free is a very capable vintage scientific calculator.

Features:

• "Live" display of stack, memory registers, program counter, flags
• Virtual paper tape printer
• E-mail paper tape, or print it via AirPrint
• Cut/copy/paste displayed value
• 10 selectable background patterns

More features the HP-67 never offered:

• Non-volatile memory - stack, registers, program
• Status indicators for prefix keys
• Keycode-to-command translation while single-stepping a program
• Cancel SST or BST operation by simply sliding your finger off the depressed key

All advanced features may switched off with a single setting, allowing you to experience a real HP-67 as closely as possible.

RPN-67 Free comes pre-installed with the program card "Annuities and Compound Amounts", taken from HP Standard Pac. The Pro version has been verified to correctly run the examples given in HP Business Decisions Pac, HP Civil Engineering Pac I, HP Clinical Lab Pac, HP E.E. Pac I, HP Games Pac I, HP Math Pac I, HP M.E. Pac I, HP Navigation Pac I, HP Stat Pac I, HP Surveying Pac I, as well as large number of programs published in Users' Library Solutions.

For more information visit the RPN-67 website: cuveesoft.ch/rpn67