my11c

my11c

Voyager 11C Microcode Emulator

0 ratings
Free
In-App Purchases

Rating summary

Details

  • Released
  • Updated
  • June 11, 2026
  • September 24, 2026
my11c screenshot #1 for iPhone
my11c screenshot #2 for iPhone
my11c screenshot #3 for iPhone
my11c screenshot #4 for iPhone
iphone
ipad
🖼️Get Icon
Icons↘︎

About

The scientific calculator that defined an era — now in your pocket. my11C brings the legendary 11C Voyager series scientific calculator back to life with cycle-accurate emulation running the original microcode. Every keystroke, every display flicker, every RPN operation — faithfully reproduced. WHY ENGINEERS LOVED THE 11C The 11C wasn't just a calculator — it was the trusted companion of engineers, scientists, and students throughout the 1980s. Its blend of powerful scientific functions, full programmability, and the legendary efficiency of RPN made it a desk-and-pocket classic. Decades later, it remains a benchmark of how a calculator should feel. FEATURES - Cycle-accurate emulation — runs the original Voyager microcode, not a simulation - Full RPN entry — the efficient Reverse Polish Notation 4-level stack - Programmable — write, store, edit, and run programs just like the original (up to 203 lines) - Complete scientific function set — trigonometric and inverse trig in DEG, RAD, and GRAD - Logarithms and exponentials — LN, LOG, e^x, 10^x - Powers, roots, reciprocals, factorial, and percentages - Statistics — mean, standard deviation, and linear regression - Permutations and combinations - Random number generator - Rectangular to polar coordinate conversion - Hours-minutes-seconds conversions - Display formatting — FIX, SCI, and ENG notation - Conditional tests and flags for real programming - Authentic 7-segment LCD display with all original annunciators BUILT FOR TODAY - iCloud sync — your calculator state follows you across devices - Native on iPhone and Mac — landscape optimized on iOS, resizable window on macOS - Full keyboard support on Mac — type numbers and operators directly - Dark interface faithful to the original Voyager design - Built-in Owner's Manual for quick reference
Show more
+1

What's New in my11c

1.0.2

September 24, 2026

Completely revised Owner's Handbook The built-in manual has been rewritten from the original HP-11C Owner's Handbook and Problem-Solving Guide, page by page. It includes every example, program listing, table and diagram, redrawn to match the printed book. Displays and keys now look like the ones in the app, and the indexes are fully linked. Improvements • More reliable saving of the calculator state when you quit the app. • Keyboard input works immediately when the calculator opens.

More
1

Subscriptions & In-App Purchases

$9.99

Unlock Full App

Unlocks all features

Developer apps