nonpareil-16c
nonpareil-16c is an emulator for the HP-16C programmers' calculator, a legendary pocket calculator from the 1980s that was widely used by software engineers and hardware designers for working with hexadecimal, octal, and binary number systems. It provides an authentic simulation of the original hardware, including bitwise logical operations, register manipulation, and display precision that matches the original 56-bit word size. The app preserves the experience of one of the most respected calculators in computing history and appeals to retrocomputing enthusiasts, embedded systems programmers, and anyone who needs a genuinely capable programmers' calculator without relying on modern approximations.
Suggested Replacements
1 suggestionNo native Apple Silicon build of nonpareil-16c has been confirmed, and the app appears not to be under active development. The nonpareil project itself is community-maintained open-source software with minimal recent activity. If you require a programmers' calculator on Apple Silicon, consider Acorn, Navi, or Qalculate, all of which run natively on M-series Macs and support hexadecimal, octal, binary and bitwise operations. Alternatively, use the native Spotlight calculator (press Command-Space and type "calculator") or the high-precision web-based calculator at desmos.com, both of which run without emulation. For the most authentic HP calculator experience with native Apple Silicon support, check whether the newer Nonpareil emulator versions have been built universally, or contact the maintainers directly.
Native version · Reported by in the community.
Sighting data is community-sourced — version availability and pricing should be verified with the developer.
Suggested Replacements
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