Comparison

CALC Smart Calculator ± vs Numerical³

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

Head to head
About

CALC Smart Calculator ±

This app offers a versatile calculator experience with basic, scientific, and advanced modes. It features real-time results, unit conversions, custom functions, and a shareable history. Optimized for various Apple devices, it's designed for ease of use by students, professionals, and scientists.

Highlights
  • Real-time results
  • Unit and currency conversions
  • Custom functions and constants
  • Shareable calculation history
  • Landscape mode with tape-roll
  • Gratuity calculator
Features
Read full description

Why Choose CALC Smart? ► Used by Scientists, Professionals and Students alike ► Apple-Featured: Spotlighted in Utilities and Calculate & Convert. ► User-Loved: Over 10k+ global reviews and 200M+ sessions validate its utility. ► Educator-Certified: Praised by teachers on the Educational App Store for its intuitive UI. Ready for the Latest OS * Multitask on your iPad and use 3D Touch shortcuts. * Search your calculation history with Spotlight. * Widget with history integration. * Apple Watch support, complete with haptic feedback and complications. Top 10 Unique Features ① Real-time results, even with incomplete parentheses. ② Landscape mode for shareable history and tape-roll. ③ Optimized custom keyboard & widget to save space and time. ④ Fast unit and currency conversions—a swipe away. ⑤ Quick gratuity calculator with rounding options. ⑥ Display decimals as fractions with 1/999 precision. ⑦ Create unlimited custom functions and constants. ⑧ Easy expression sharing via link. ⑨ Built-in timer. ⑩ Limitless themes and layouts. Why Users Love CALC * Live Math: Natural input, even for complex calculations. * Swipe Functions: Over 60 advanced math functions just a swipe away. * History: Never lose track of your calculations. * Conversion: 21 categories, plus custom options. Additional Features * Edit on the Fly: Long-press to modify expressions and numbers. * Audio Feedback: Customize tapping sounds. * Styling: Multiple font choices. * Enterprise-Ready: EMM support with MDM & AppConfig. We Listen * Frequent updates based on your feedback. Got a suggestion? Visit our UserVoice page: https://QApps.UserVoice.com Custom Background Tip * Design your own CALC background with images from NASA’s multimedia library: https://nasa.gov/multimedia Terms & Usage * Using this app means agreeing to the standard Terms of Use. Standard Terms of Use (EULA) - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Numerical³

A powerful and beautifully designed calculator app that offers advanced scientific functions, automatic bracket handling, and a unique no-equals button interface. It integrates seamlessly with iOS features like widgets and keyboards for calculations anywhere.

Highlights
  • No equals button interface
  • Automatic bracket handling
  • Full scientific keypad
  • Today Widget integration
  • Numerical² Keyboard for any app
  • Equation editing
  • Customizable themes
Features
Read full description

Numerical³ is still the calculator without equal. The first Numerical shipped in 2014—v3 brings long-requested improvements and the same focus on delightful, minimalist utility apps.MAC TOONumerical runs natively on macOS: multiple windows, tabs, resizing, desktop widgets, full keyboard support, and synced history. Download it on the Mac App Store.WIDGETSLock screen and Home Screen widgets—modernized on iPhone and iPad.THEMESBrand-new neo-morphic themes alongside our most popular picks—each with light and dark variants that follow your iOS appearance settings. Use the Theme Picker to preview them all.ICONSTheme Home Screen icons match iOS 26 with glass effects, Dark Mode, and tints.HISTORYYour equations stay visible on screen—above the keyboard on iPhone (portrait) and to the side on iPad and Mac. iCloud keeps history in sync across iPhone, iPad, and Mac.KEYBOARDSExternal keyboards are fully supported on iPhone, iPad, and macOS—including the shortcuts you expect.SOUND FXSounds and clicky feedback on iPhone, iPad, and Mac. Haptics on iPhone.14+ LANGUAGESThe entire app is localized in 14+ languages—including Japanese, Chinese, Korean, and Russian—with international digits and formats. Missing yours? Let us know.Mana Machines—Numerical³ and upcoming apps from a studio focused on delightful, minimal, human-centered utilities. More on the way.Questions or feedback: manamachineventures@gmail.comDeveloped by Andrew J Clark. Designed by Andrew J Clark & Alex Vanderzon.

Screenshots

CALC Smart Calculator ±4 screens
Numerical³4 screens

Verdict

The call

The clearest difference is in-app purchases: Numerical³ at none against CALC Smart Calculator ±'s 4. CALC Smart Calculator ±'s advantage is review sentiment (87% vs 75%). On price, rating, ratings volume and update cadence 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. CALC Smart Calculator ± sells 4 in-app purchases, starting at $0.99 per 3 months. Numerical³ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for CALC Smart Calculator ± against 4.8 for Numerical³. Both are backed by a comparable volume of ratings — 2.4K and 1.3K respectively. Written reviews are what separate them: 87% of CALC Smart Calculator ±'s written reviews are positive against 75% of Numerical³'s.

UpkeepUpdate frequency

CALC Smart Calculator ± ships an update fortnightly, Numerical³ every 2 weeks. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

Scorecard3 real differences · 7 level
CALC Smart Calculator ± versus Numerical³: the parameters behind the verdict, then further details
ParameterCALC Smart Calculator ±Numerical³
PriceFreeFree
Rating4.8 (2.4K ratings)4.8 (1.3K ratings)
Positive reviews87.3% of reviews — better74.9% of reviews
Number of ratings2.4K — better1.3K
Update frequencyFortnightlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, Mac, Apple Watch — betteriPhone, iPad, Mac
Requires iOS17.0 — better18.0
Further details — not scored
Size16 MB175 MB
Age rating4+4+
DeveloperQApps LLCAndrew J Clark

Customer experience

CALC Smart Calculator ±

All ratings2,370 ratings
Positive96.7%
Neutral2.1%
Negative1.2%
Written reviews640 reviews
Positive87.3%
Neutral3.9%
Negative8.8%

Numerical³

All ratings1,340 ratings
Positive94.9%
Neutral2.2%
Negative3.0%
Written reviews490 reviews
Positive74.9%
Neutral9.6%
Negative15.5%

User reviews

CALC Smart Calculator ±

From 2.4K App Store ratings

What we love

  • 💻 Excellent calculator functionality
  • 🎨 Beautiful and clean interface
  • 🔢 Displays full calculation history
  • 🔍 Useful conversion tools
  • 🤖 Seamless Apple Watch integration

Room to improve

  • 💰 Subscription model introduced
  • 🔒 Restricted features behind paywall
  • 📊 Calculation bugs and inaccuracies
  • 🔄 Unnecessary UI changes frustrate users

Numerical³

From 1.3K App Store ratings

What we love

  • 🚀 Great app
  • 👍 Simple and intuitive
  • 👍 Clean and beautiful design
  • 🚀 Fast and responsive
  • 👍 Customizable themes

Room to improve

  • 🐛 Bugs and glitches (unresponsive keys, calculation errors)
  • 🔍 Lack of advanced functions (scientific, unit conversion)
  • 💡 Needs more theme options
  • 💡 Needs iPad support
  • 💡 Needs widget support

Bugs and requests

CALC Smart Calculator ±

Reported bugs

3 issues
  • Calculation errors in certain scenarios
  • Forced tutorial popup on every launch
  • Unreliable widget functionality

Requested features

4 requests
  • Ability to easily clear calculation history
  • Option to customize button layout
  • Support for entering hexadecimal numbers
  • Integration with other apps and services

Numerical³

Reported bugs

3 issues
  • Unresponsive keys
  • Calculation errors
  • Crashes on startup

Requested features

5 requests
  • Add scientific functions (square root, trigonometry, etc.)
  • Implement an equals button
  • Add more theme options
  • Develop an iPad version
  • Bring back widget support

In-app purchases

4 purchases

CALC Smart Calculator ±

Subscriptions4
  • Quarterly Supporter$0.993 Months
  • Quarterly Supporter7 Days trial$1.993 Months
  • Annual Contributor$2.991 Year
Show 1 more
  • Annual Contributor7 Days trial$5.991 Year
None

Numerical³

No in-app purchases

Questions

Is CALC Smart Calculator ± free?
CALC Smart Calculator ± is free to download, with in-app purchases available.
Is Numerical³ free?
Numerical³ is free to download, with no in-app purchases.
Which has better reviews, CALC Smart Calculator ± or Numerical³?
CALC Smart Calculator ± and Numerical³ are both rated 4.8 out of 5 on the App Store, from 2.4K and 1.3K ratings respectively.
Do CALC Smart Calculator ± or Numerical³ have ads?
Neither CALC Smart Calculator ± nor Numerical³ shows ads.
Which is updated more often, CALC Smart Calculator ± or Numerical³?
CALC Smart Calculator ± ships an update fortnightly, and Numerical³ every 2 weeks. Most recently, CALC Smart Calculator ± was updated on October 15, 2026 and Numerical³ on October 14, 2026.

Other comparisons