Cathy's Calculator for iPad vs EnterCalc

This is 100% free with no ads, no tracking, no permissions, and no logins. Made for people who remember the 80's, this features large buttons and is easy to use. Arithmetic is precise and where approximation is used (e.g. sqrt), the equals sign is replaced with a squigle-equals. There is a command history with scrollback, meant to feel like the old ribbon printers. You can copy a number to the clipboard by tapping on it. This calculator was made for my mother, Catherine.

You enter calculations, EnterCalc returns results. EnterCalc is a native calculator for iPhone and iPad. Whether you're at your desk or on the go, EnterCalc focuses on simplicity, intuitive quality-of-life improvements, and easy multitasking. It delivers a familiar calculator experience while adding thoughtful features that make everyday calculations fast and easy. Available for both iOS and MacOS. Features: • Open multiple calculator panels with independent calculations and settings • Calculation history with quick reuse of previous results • Customizable function keys for your preferred actions • Advanced copy, paste, undo, and redo support • One-click copying for fast workflows • Preserve calculation context when copying and pasting • Digit-level editing for quick corrections • Currency mode with built-in VAT and TIP calc tools • Hardware keyboard and shortcut support • Landscape mode support • Optional scientific notation • Configurable rounding behavior • Multiple number formatting styles • Multiple language and localization options • Support for alternative keyboard layouts • Light and Dark Mode support • Optional tactile and audio feedback on supported devices • Accessibility-focused design • Lightweight and distraction-free • Privacy-focused, operates entirely on your device with no tracking or analytics • Open source under the MIT License