Calc vs MyNoteyNotes

Calc-U-59 is a TI-59, TI-58, and TI-58C emulator for iPhone, iPad, and Mac. It runs the original ROM, so every program, module, and quirk works exactly as it did on the real hardware — with virtual magnetic cards, a PC-100C printer, all fourteen Solid State Software modules, and a CPU-level debugger for anyone who wants to look under the hood. CYCLE-ACCURATE EMULATION The TMC0501 processor is emulated at the cycle level, reproducing the exact behaviour of the original hardware — including the TI-58C's constant memory, preserved across restarts. The Master Library ROM and many more modules are included. INTEGRATED DEBUGGER Inspect program memory, data registers, CPU state, and internal SCOM registers live as the machine runs. Step through instructions one at a time, or let the emulator run and freeze it at any point. You can even run your own assembly programs! On iPad in landscape and on the Mac it sits beside the calculator; on iPhone and in portrait, turn on the debugger page in Settings. PAPER TAPE PRINTER A functional recreation of the PC-100C thermal printer with dot-matrix font rendering. Trace exactly what programs print and why. Copy output as plain text or as a high-resolution bitmap. MAGNETIC CARD READER Load and save programs and data registers as card files, stored on your device and synced via iCloud. Bring old listings back to life and run them under the debugger. STATE FILES Load .ti59 and .ti58(c) state files to instantly configure the machine with a program, registers, and flags — ideal for sharing reproducible scenarios or revisiting known machine states. SOLID STATE MODULES Select a Solid State Module and run programs from there. Whether you're bringing an old program back to life, running the Master Library modules, or exploring how these machines actually worked under the hood, Calc-U-59 gives you a faithful TI-59 in your pocket. Calc-U-59 is free software under the GPLv3; the source code is on GitHub.

MyNoteyNotes is a personal notebook app for iPhone and iPad. Journal, plan, sketch, and stay organized — privately on your device or synced with iCloud. YOUR NOTEBOOKS, YOUR WAY • Create notebooks with your choice of 50 cover colours or a custom photo cover. • Choose from 5 paper styles — blank, dotted, squared, ruled narrow, and ruled wide. • Keep all notebooks organized in a clean, easy-to-browse library. WRITE AND SKETCH NATURALLY • Natural-feeling ink for Apple Pencil and finger input. • Customize pen style, colour, thickness, and ink flow. • Add text boxes with multiple font options, bold, italic, and alignment. • Insert and resize images from your photo library. • Erase, undo, and redo at any time. CALENDAR — ALWAYS WITHIN REACH Never lose track of your schedule — your calendar is always one tap away, even while writing in a notebook. • Monthly calendar view — tap any date to see appointments. • Add appointments with title, type, date, time, and location. • Set local reminders in advance — minutes, hours, or days. • Manage reminders from the Notifications tab without leaving the app. MYNOTEYNOTES STORE — COMING SOON Additional notebook types will be available as separate in-app purchases — starting with the Devotional Journal, Password Vault & Diary. More notebook types, planners, and templates are on the way. PRIVATE AND SECURE Stored on your device by default. No tracking, no ads, no data sharing. Sign in with Apple to enable iCloud backup, cross-device access, and secure account deletion.