my15c
Voyager 15C Microcode Emulator
0 ratings
Free
In-App Purchases
Rating summary
About
my15C is a faithful emulation of the classic 15C — the legendary RPN scientific programmable calculator, running the original Voyager-series microcode ROM, cycle-accurate.
Built for engineers, scientists, and RPN enthusiasts who want the real thing in their pocket — not just a look-alike.
FEATURES
• Authentic 15C ROM emulation — same logic, same quirks as the original 1982 hardware
• Full RPN entry with a 4-level stack
• Complex number arithmetic
• Matrix operations
• Numerical integration (∫f(x))
• Root solving (SOLVE)
• Full programmability — write, edit, and run your own programs
• Continuous memory with iCloud sync across your devices
• Authentic 7-segment LCD display and keyboard layout
• Landscape-optimized for iPhone, iPad, and Mac
Show more
What's New in my15c
1.0.5
October 22, 2026
• Support for iPhone Duo: the calculator uses the full display when the phone is open and keeps clear of the camera cut-out, so no key is hidden. • The display shows an annunciator only while it is on, as on the real calculator; nothing is ghosted when the calculator is off.
More1
Subscriptions & In-App Purchases
$9.99
Unlock Full App
Unlocks all features
