R47 RPN Calculator
iOS app by MARCEL DAN. Education · MARCEL DAN
- Store rating
- 5 / 5
- Store rating count
- 27
- Download price
- Free to download
- In-app purchases
- Unknown
- Version
- 1.10
- Listing last refreshed
- 2026-09-16
View the original store listing
Store description excerpt
An RPN calculator isn't just a tool for getting answers like a traditional exam calculator—it's a way of thinking. It mirrors how you naturally break problems into steps, making it more like an extension of your mind than a shortcut. A full HP-style RPN scientific calculator — on iPhone and iPad, offline, with no ads or tracking. 47 Calculator is a programmable Reverse Polish Notation scientific calculator. Trigonometry, logarithms, statistics, probability, finance, complex numbers, base conversions, matrix operations, numerical solvers — the full 47-series instruction set, in your pocket. Free includes the calculator, a program editor for reading and writing 47-series programs, reference documentation, and a full tutorial library — probability and statistics, finance, numerical methods, programming patterns, advanced RPN techniques. The Pro version adds the Explorer — browse every menu, flag, mode, and operation the engine supports, searchable and cross-linked. Works fully offline after first launch. Light and dark themes. No ads, no third-party analytics, no tracking, no account required.
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