prismCalc

prismCalc is an everyday calculator built for the math that happens outside a spreadsheet. Split a dinner bill, check a discount, compare loan payments, convert units, or reuse a result from earlier in the day. It works on iPhone, iPad, Mac, and Apple Watch with a consistent glass-style look and no tracking.

LIVE CALCULATION PREVIEW

• See the running result as you type the expression
• Keep context on screen so you catch mistakes before you press equals

KEEP RECENT RESULTS CLOSE

• Dynamic Island can show your last calculation while you switch apps
• Widgets and quick actions help you jump back to recent math fast
• History lets you reuse prior calculator, tip, split, discount, loan, and conversion entries

CORE CALCULATOR

• Large buttons with haptic feedback for comfortable tap targets
• Memory keys: M+, M−, MC, MR with a clear indicator dot
• Long-press the display to copy, double-tap to paste
• Standard or alternate keyboard layout so it fits your preferred workflow
• Display gestures for backspace, undo backspace, recall, clear, copy, and paste

EVERYDAY TOOLS (Pro)

• Tip and Split: tips, equal splits, rounded per-person totals, and by-share splits for uneven groups
• Discount Calculator: original price, savings, sale price, and tax
• Loan Calculator: mortgage, auto, student, and personal loans
  • Mortgages lead with your total monthly payment, with principal plus interest and escrow context (property tax, insurance, HOA)
  • Includes payoff planning, extra-payment what-ifs, and full amortization details
• Unit Converter: length, weight, volume, and temperature conversions

HISTORY AND NOTES (Pro)

• Save, review, search, and filter past calculations
• Name and pin important entries like bills, payoff plans, and conversion results
• Save mortgage scenarios with full escrow context (property tax, insurance, HOA, escrow toggle) so reopening restores the exact inputs
• Add notes to any calculation
• Share calculations with notes via Messages, Mail, or any app
• Lock important entries so they cannot be accidentally deleted
• Optional iCloud Sync across devices

ALWAYS ACCESSIBLE

• Home Screen widgets in small, medium, and large sizes (free, configurable display modes)
• Lock Screen widgets including accessory circular, rectangular, and inline (free)
• Control Center widgets for calculator, tip, split, discount, unit converter, loan, and copy last result
• Siri Shortcuts for quick tips, split bills, unit conversions (including volume), and recall of recent results
• Apple Watch companion for calculator, tip, discount, and split on your wrist with 10 synced themes

THEMES AND LAYOUT

• Animated mesh gradient backgrounds with true glassmorphism
• 4 free themes: Aurora, Calming Blues, Dark Glass, Pearl
• 6 additional Pro themes
• Square or round buttons, plus standard or alternate key layout

PRIVACY FIRST

• No tracking, no analytics, no ads, and no account required
• Your data stays on your device unless you enable optional iCloud Sync

ACCESSIBILITY

• VoiceOver, Dynamic Type, High Contrast mode, Reduced Motion, and alternative key layout

Built by a solo developer. Thanks for supporting independent apps.

Disclaimer: Calculations in prismCalc are for informational and illustrative purposes only. Results are estimates and do not constitute financial advice, guaranteed loan terms, or a commitment to lend. Actual rates and payments may vary based on lender-specific criteria. LaClair Technologies is not a financial institution.