my59

Experience the power and authenticity of a classic programmable calculator from the late 1970s directly on your iPhone, iPad, and Mac. my59 is not just a calculator app; it is a faithful, highly accurate emulator that brings a piece of computing history into the modern era.

Whether you are an engineer, a student, a retro-computing enthusiast, or simply someone who appreciates the raw power of vintage programmable calculators, my59 delivers an authentic, uncompromised experience enhanced with the latest Apple ecosystem features.

KEY FEATURES:

Authentic Design & Feel: A meticulously crafted interface inspired by classic programmable calculators of the era, complete with a faithful keypad layout and display.

Full Emulation: Supports the complete original instruction set, memory registers, and programming logic. Write and execute programs just as you would on the original hardware.

Modern Workspace: Fully optimized for all screen sizes, including seamless portrait and landscape modes on iPad, and native support for Apple Silicon Macs.

Built-in Documentation: Never get stuck. Full documentation, manuals, and quick references are integrated directly into the app for easy access.

UNLOCK FULL POWER (Premium):
my59 is free to download and try. Upgrading to Premium (available as a flexible subscription or a lifetime one-time purchase) unlocks the ultimate workstation:

Complete Module Library: Get unrestricted access to all expansion packs and library modules.

Unlimited Expansion Ports: Attach multiple modules simultaneously to exponentially increase your calculator's capabilities.

iCloud Sync: Keep your programs, memory state, and modules seamlessly synchronized across your iPhone, iPad, and Mac.

Advanced Saving & Sharing: Save an unlimited number of custom programs and easily share them with other users.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

This app is an independent project and is not affiliated with, endorsed by, or connected to Texas Instruments Inc. or any of its subsidiaries.