This app emulates a legendary programmer's calculator from the 1980s, offering cycle-accurate performance and faithful reproduction of its features. It includes base conversions, bit manipulation, RPN, and programmability, with modern conveniences like iCloud sync and a dark interface.
1.0.3
August 17, 2026
Self-tests are here! This update brings the calculator's built-in diagnostic tests to life, working exactly as on the original hardware: • Self-test — hold × and ON: the ROM runs its full diagnostic and finishes with the famous all-segments display • Keyboard test — hold ÷ and ON, then press every key in sequence • Continuous self-test — hold + and ON for the endless diagnostic loop All three are also available from the Calculator menu on Mac. Under the hood: • More accurate emulation of the display driver hardware, verified against a real calculator • The display now shows the complete set of annunciators, positioned to match the original LCD glass • Improved handling of simultaneous key presses Thanks to the community at the Museum of HP Calculators forum for the sharp observations that led to this update!
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my16c is a mobile application that provides a cycle-accurate emulation of the legendary 16C Voyager series programmer's calculator. It faithfully reproduces every aspect of the original hardware and its functionality.
my16c supports full base conversions between HEX, DEC, OCT, and BIN. It also offers extensive bit operations like shifts, rotates, AND, OR, XOR, NOT, and complements, along with standard floating-point calculations.
Yes, my16c fully supports RPN (Reverse Polish Notation) entry, which is the efficient stack-based system that the original 16C calculator was known for.
Absolutely. my16c allows you to write, store, and run programs just like you would on the original 16C calculator, making it a powerful tool for complex tasks.
my16c is designed to run natively on iPhone, iPad, and Mac devices. It is landscape optimized on iOS and features a resizable window on macOS.
my16c offers a free trial period, allowing you to experience its full functionality before making a purchase. A single, one-time purchase unlocks the app permanently, with no subscriptions required.
No, my16c does not contain advertisements. The app is free to download and use during its trial period, with a one-time purchase to unlock its full features.
The latest version of my16c is 1.0.3, which was last updated on August 17, 2026. While specific update frequency isn't detailed, this indicates ongoing development and support.
