Comparison

prismCalc vs Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

prismCalc

This app offers a visually appealing and functional calculator for everyday financial tasks like splitting bills, calculating discounts, and comparing loan payments. It provides live calculation previews, a history of recent results, and various everyday tools.

Highlights
  • Live calculation preview
  • History of recent results
  • Tip and split bill calculator
  • Discount calculator
  • Loan calculator
  • Unit converter
  • Customizable themes
Features
Read full description

Split a dinner bill in seconds. Check a discount before you buy. Compare loan payments side by side. prismCalc is the everyday calculator for the math that happens outside a spreadsheet — beautiful glass design, no ads, no tracking. **LIVE CALCULATION PREVIEW** • See the running result while you build an expression • Keep enough context on screen to catch mistakes before pressing equals **KEEP RECENT RESULTS CLOSE** • Dynamic Island can keep your last calculation visible while you switch apps • Widgets and quick actions help you get back to recent math without digging through the app • History lets you reuse prior calculator, tip, discount, loan, and conversion entries **CORE CALCULATOR** • Large calculator buttons with haptic feedback • Memory functions (M+, M−, MC, MR) with indicator dot • Long-press display to copy, double-tap to paste • Standard or alternate key layout — choose what feels natural • Display gestures for backspace, undo backspace, recall, clear, copy, and paste **EVERYDAY TOOLS (Pro)** • Tip & 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 the total monthly payment, with principal + interest and escrow (property tax, insurance, HOA) as immediate context. Includes payoff planning, extra-payment what-ifs, and full amortization details • Unit Converter — 38 length, weight, volume, and temperature units, with Metric, US Customary, and Imperial results grouped clearly **HISTORY & NOTES (Pro)** • Save, review, search, and filter past calculations • Name and pin saved calculations so important bills, payoff plans, and conversions are easier to find later • Mortgage scenarios save with full escrow context (property tax, insurance, HOA, escrow toggle) so reopening a saved payoff plan 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 WITHIN REACH** • Home Screen widgets — small, medium, and large (all free) • Lock Screen widgets — accessory circular, rectangular, and inline (free) • Control Center widgets — quick actions for calculator, tip, split, discount, unit converter, loan, and copy last result • Siri Shortcuts — calculate tips, split bills, convert units including volume, and recall recent results • Apple Watch companion — calculator, tip, discount, and split right on your wrist with all 10 themes synced **THEMES AND LAYOUT** • Animated mesh gradient backgrounds with true glassmorphism • 4 free themes (Aurora, Calming Blues, Dark Glass, Pearl) plus 6 Pro themes • Square or round buttons, plus standard or alternate key layout **PRIVACY FIRST** • No tracking, no analytics, no ads, no account required • Your data stays on your device unless you choose optional iCloud Sync **ACCESSIBILITY** • VoiceOver, Dynamic Type, Increase Contrast, Reduced Motion, and alternative key layout Built by a solo developer. Thanks for supporting independent apps. Disclaimer: Calculations provided by 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.

About

Calculator

Features
Read full description

Welcome to Calculator - Smart Calc—the ultimate calculator app built specifically for your iPhone and iPad! Seamlessly switch between a clean Basic Calculator and a feature-rich Scientific Calculator with just a tap. Track your calculations instantly with the built-in History Log—never lose your place again! Key Features: Dual Modes: • Quick portrait Basic Calculator for daily math, and landscape Scientific Calculator for algebra, trigonometry, and complex equations. Calculations History: • Access and review your previous math logs. Copy and paste results instantly. Clean & Intuitive UI: • Beautiful minimalist layout designed to eliminate eye strain. Optimised for iOS: • Full iPad layout optimisation, smooth transitions, and tactile haptic feedback. Go PRO (Premium In-App Purchase): Upgrade to the PRO Version via a quick in-app purchase to unlock the ultimate experience: • 100% Ad-Free: • Remove all banner and interstitial ads completely. • Unlimited History Log. • Unlock infinite history saves (Free version is limited to 5 history items). • Premium Theme Customisations: • Unlock the custom color picker to style the keypad to any accent color you like. Perfect For: Students: • Solve algebra, geometry, calculus, science equations, and homework. Professionals: • Quick business math, tax calculations, budgeting, and office calculations. Everyday Use: • Tipping, splitting bills, shopping discounts, percentages, and grocery math. Download Calculator - Smart Calc today and make math effortless on your iOS device! Subscription Details: - Payment will be charged to iTunes Account at confirmation of purchase. - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. - Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. - No cancellation of the current subscription is allowed during active subscription period. - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Note: - Privacy Policy : - https://privacypolicycenter.com/new/view/id6790338417 Terms Of Use :- https://privacypolicycenter.com/new/terms/id6790338417 EULA: - https://privacypolicycenter.com/new/eula/id6790338417

Screenshots

prismCalc4 screens
Calculator4 screens

Verdict

The call

The clearest difference is ads: prismCalc at none against Calculator's shown. Calculator's advantage is iOS requirement (15.0 vs 26.0). On price, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. prismCalc sells 1 one-off in-app purchase and Calculator sells 1 in-app purchase, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences · 8 level
prismCalc versus Calculator: the parameters behind the verdict, then further details
ParameterprismCalcCalculator
PriceFreeFree
Rating5.0 (4 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings4 — better—
Update frequencyWeekly—
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, Mac, Apple Watch — betteriPhone, iPad, iPod
Requires iOS26.015.0 — better
Further details — not scored
Size70 MB34 MB
Age rating4+17+
DeveloperPatrick LaClairJksol Infotech LLP

In-app purchases

1 purchases

prismCalc

One-time1
  • prismCalc Pro$2.99
1 purchases

Calculator

Subscriptions1
  • Monthly Premium Access$5.991 Month

Questions

Is prismCalc free?
prismCalc is free to download, with in-app purchases available.
Is Calculator free?
Calculator is free to download, with in-app purchases available.
Do prismCalc or Calculator have ads?
Calculator shows ads; prismCalc does not.

Other comparisons