Comparison

Calculator Smart vs Calculator ×

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

Head to head
About

Calculator Smart

This app offers a powerful and precise calculator for everyday math and advanced scientific computations. It features a clean interface with large buttons, supporting complex equations, multiple modes, and intuitive input methods. Personalize your experience with colorful skins and custom icons.

Highlights
  • 30+ scientific operations
  • Degrees and Radians support
  • Parentheses and nested equations
  • Intuitive input with slide-to-delete
  • Copy & Paste results
  • Apple Watch app and Lock Screen Widget
  • Colorful skins and custom icons
Features
Read full description

Calculator Smart is the most powerful and precise calculator for iPhone, iPad, and Apple Watch — built for everyday math and advanced scientific computations alike. Whether you need a quick percentage or a complex nested equation with parentheses, Calculator Smart handles it all with a clean, modern interface and lightning-fast big buttons. Scientific & Standard Modes • 30+ scientific operations including trigonometry, logarithms, and more • Degrees and Radians support • Parentheses and nested parentheses for complex equations • Output in Decimal or Scientific Notation (mantissa/exponent) Intuitive Input • Slide to delete wrong digits instantly • Double-tap or long-press to Copy & Paste results • Full External Keyboard support (Bluetooth & Smart Keyboard) • Three-digit grouping with locale-specific decimal and thousands separators Cross-Platform & Widgets • Apple Watch app with Complication shortcuts • Lock Screen Widget — calculate without unlocking your device • Messages Extension — share results directly in conversations • Multitasking: Slide Over and Split View (iPad) Personalization • Colorful skins to match your style • Custom App Icons that match your chosen skin • Button sound feedback for a satisfying tactile feel Universal Purchase — buy once, use on all your Apple devices. Download Calculator Smart for FREE today!

About

Calculator ×

This app redefines the calculator experience for touch-screen devices with a modern, intuitive design. It offers features like a tape log for storing calculations, formula evaluation, and iPad multitasking support for enhanced productivity.

Highlights
  • Tape Log for calculation history
  • Reuse, copy, and share calculations
  • Evaluate entire formulas at once
  • iPad multitasking support
  • Modern touch-screen design
Features
Read full description

Designed exclusively for today's touch-screen devices, this calculator app represents a groundbreaking paradigm shift, leaving behind the outdated design patterns of mechanical calculators. We have meticulously crafted a new design from scratch, keeping modern touch-screen devices at the forefront of our innovation. • Tape Log: All your calculations are securely stored in the tape log, ensuring you never lose track of your numerical journey. • Calculation Management: Effortlessly reuse, copy, or share calculations to integrate them seamlessly into your work or daily life. • Formula Evaluation: Enter entire formulas in one line for swift and accurate evaluation, simplifying complex calculations. • iPad Multitasking: Experience true productivity with iPad multitasking support, enabling you to perform calculations while using other apps through Slide Over and Split View. Calculator Pro represents a powerful departure from traditional calculators, offering a tailored experience for touch-screen devices. Download now and embrace a new era of calculations with maximum control and power at your fingertips. Terms of Use: https://doubleuapp.com/privacy/terms.html

Screenshots

Calculator Smart4 screens
Calculator ×4 screens

Verdict

The call

Calculator Smart and Calculator × both sit at 4.7 stars, but that hides the real split: 73% of Calculator ×'s written reviews are positive against 36% of Calculator Smart's. Calculator Smart's advantage is device support (6 vs 3) and ratings volume (498 vs 143). On price, rating, update cadence and ads 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. Calculator Smart sells 3 one-off in-app purchases and Calculator × sells 4 in-app purchases, starting at $4.99 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Calculator Smart holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 498 and 143 respectively. Written reviews complicate that: 36% of Calculator Smart's written reviews are positive against 73% of Calculator ×'s, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Calculator Smart ships an update every 4 months, Calculator × every 2 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard4 real differences · 6 level
Calculator Smart versus Calculator ×: the parameters behind the verdict, then further details
ParameterCalculator SmartCalculator ×
PriceFreeFree
Rating4.7 (498 ratings) — better4.5 (143 ratings)
Positive reviews36.4% of reviews73.3% of reviews — better
Number of ratings498 — better143
Update frequencyEvery 4 monthsEvery 2 months — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, Mac, Apple TV, Apple Watch — betteriPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size24 MB17 MB
Age rating4+4+
DeveloperMiroslav OtsedarskiDOUBLE U s.r.o.

Customer experience

Calculator Smart

All ratings494 ratings
Positive93.1%
Neutral1.2%
Negative5.7%
Written reviews22 reviews
Positive36.4%
Neutral27.3%
Negative36.4%

Calculator ×

All ratings143 ratings
Positive89.5%
Neutral4.2%
Negative6.3%
Written reviews15 reviews
Positive73.3%
Neutral6.7%
Negative20.0%

In-app purchases

3 purchases

Calculator Smart

One-time3
  • Colorful Skins and Remove Ads$1.99
  • Colorful Skins$1.99
  • Colorful Skins for Mac app$1.99
4 purchases

Calculator ×

Subscriptions1
  • Premium Yearly$4.991 Year
One-time3
  • Remove ads$4.99
  • Remove ads$7.99
  • Remove ads$11.99

Questions

Is Calculator Smart free?
Calculator Smart is free to download, with in-app purchases available.
Is Calculator × free?
Calculator × is free to download, with in-app purchases available.
Which has better reviews, Calculator Smart or Calculator ×?
Calculator Smart is rated higher. Calculator Smart averages 4.7 out of 5 from 498 ratings, while Calculator × averages 4.5 from 143 ratings.
Do Calculator Smart or Calculator × have ads?
Both Calculator Smart and Calculator × show ads.
Which is updated more often, Calculator Smart or Calculator ×?
Calculator Smart ships an update every 4 months, and Calculator × every 2 months. Most recently, Calculator Smart was updated on November 1, 2026 and Calculator × on November 2, 2026.

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