prismCalc for iPhone, iPad, Mac, and Apple Watch
See your answer before you press equals
prismCalc is a privacy-first everyday calculator built for quick arithmetic, shopping math, dining checks, household planning, and the small totals that need to stay visible while you move between apps. The core calculator updates results as you type, supports copy and paste, includes memory buttons, and uses a responsive glass interface designed for Apple devices.
Free features include the live preview calculator, Dynamic Island result glance, Home Screen widgets, Control Center and Home Screen quick actions, Siri and Shortcuts support, four adaptive themes, two keypad layouts, square or circular buttons, Apple Watch access, and a useful recent history. There are no ads, no tracking, and no subscription requirement.
The optional prismCalc Pro upgrade is a one-time purchase that unlocks focused tools for tips, bill splitting, discounts, loans with escrow context, and unit conversions including volume. Pro also expands calculation history with unlimited entries, notes, locking, search, filtering, and optional iCloud sync, then carries that unlock across iPhone, iPad, Mac, and Apple Watch with Family Sharing.
- Live preview calculator with result updates before equals
- Tip, split bill, discount, loan with escrow, and unit conversion tools
- Widgets, Dynamic Island, Control Center actions, Siri, and Shortcuts
- One-time Pro unlock, Family Sharing, no ads, and no tracking