Comparison

Calculator! vs CALC Smart Calculator ±

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

Head to head
About

Calculator!

This app offers a versatile calculator experience with both standard and scientific modes. Customize its appearance, use it in any orientation, and access additional tools like a notes tab and calculation history. It's designed for students and professionals needing accurate calculations.

Highlights
  • Standard and scientific calculator modes
  • Customizable look (iPad only)
  • Portrait and landscape orientation
  • Notes and drawing tab
  • Calculation history
  • AirPrint and email support
Features
Read full description

Calculator! is an easy to use, beautifully packaged calculator for your iPad or iPhone that includes both a standard and scientific calculator. Our versatile calculator app allows you to: • Customize the look of the application by changing the leather color and background texture (iPad Only) • Choose between a basic calculator or scientific calculator with more than 30 scientific operations • Use both calculators in portrait or landscape mode • Take notes or draw with your finger on the Notes Tab • View and edit a history of your calculations on the History Tab • Use Airprint to print your notes or your calculation history • Email your calculation history or notes from within the app • View an equation of your current calculations • Calculate with accuracy to more than 75 significant digits • Use parenthesis and nested parenthesis in your calculations We wrote Calculator! to be the perfect calculator for budding math students and professionals alike.

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/

Screenshots

Calculator!4 screens
CALC Smart Calculator ±4 screens

Verdict

The call

The clearest difference is price: CALC Smart Calculator ± at Free against Calculator!'s $0.99. CALC Smart Calculator ± also leads on update cadence (fortnightly vs every 3 months). Calculator!'s advantage is iOS requirement (9.0 vs 17.0). On rating, review sentiment, ratings volume 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

CALC Smart Calculator ± is free to download; Calculator! costs $0.99 up front. Calculator! sells 1 one-off in-app purchase and CALC Smart Calculator ± sells 4 in-app purchases, starting at $0.99 per 3 months. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Calculator! against 4.8 for CALC Smart Calculator ±. Both are backed by a comparable volume of ratings — 4.3K and 2.4K respectively. Written reviews are what separate them: 86% of Calculator!'s written reviews are positive against 87% of CALC Smart Calculator ±'s.

UpkeepUpdate frequency

Calculator! ships an update every 3 months, CALC Smart Calculator ± fortnightly. The most recent releases landed on November 12, 2026 and November 6, 2026 respectively.

Scorecard3 real differences · 7 level
Calculator! versus CALC Smart Calculator ±: the parameters behind the verdict, then further details
ParameterCalculator!CALC Smart Calculator ±
Price$0.99Free — better
Rating4.8 (4.3K ratings) — better4.8 (2.4K ratings)
Positive reviews86.0% of reviews87.2% of reviews — better
Number of ratings4.3K — better2.4K
Update frequencyEvery 3 monthsFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Mac, Apple Watch — better
Requires iOS9.0 — better17.0
Further details — not scored
Size56 MB16 MB
Age rating4+4+
Developer7th GearQApps LLC

Customer experience

Calculator!

All ratings4,270 ratings
Positive96.1%
Neutral1.7%
Negative2.2%
Written reviews1,077 reviews
Positive86.0%
Neutral6.3%
Negative7.7%

CALC Smart Calculator ±

All ratings2,370 ratings
Positive96.7%
Neutral2.1%
Negative1.2%
Written reviews641 reviews
Positive87.2%
Neutral3.9%
Negative8.9%

User reviews

Calculator!

From 4.3K App Store ratings

What we love

  • 💰 Reasonably priced
  • 📝 Useful note-taking features
  • 📊 Keeps a calculation history
  • 🎨 Customizable appearance
  • 🔍 Helpful log and tracking features

Room to improve

  • 🤔 Confusing input box behavior
  • 🔍 Lack of graphing features
  • 🔍 Missing some scientific calculator buttons
  • 🔍 Inconsistent widget behavior
  • 🔍 Issues with split-screen and resizing

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

Bugs and requests

Calculator!

Reported bugs

4 issues
  • Widget doesn't work as expected
  • Calculation history not available in portrait mode
  • Resizing issues on iPad Pro
  • Slow startup times on older devices

Requested features

5 requests
  • Add unit conversion tools
  • Improve calculation expression logic
  • Allow notes to be viewed in portrait mode
  • Implement a scratch paper area on the right side
  • Add ability to sync data across devices

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

In-app purchases

1 purchases

Calculator!

One-time1
  • Calculator$0.99
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

Questions

Is Calculator! free?
Calculator! costs $0.99, and also offers in-app purchases.
Is CALC Smart Calculator ± free?
CALC Smart Calculator ± is free to download, with in-app purchases available.
Which has better reviews, Calculator! or CALC Smart Calculator ±?
Calculator! is rated higher. Calculator! averages 4.8 out of 5 from 4.3K ratings, while CALC Smart Calculator ± averages 4.8 from 2.4K ratings.
Do Calculator! or CALC Smart Calculator ± have ads?
Neither Calculator! nor CALC Smart Calculator ± shows ads.
Which is updated more often, Calculator! or CALC Smart Calculator ±?
Calculator! ships an update every 3 months, and CALC Smart Calculator ± fortnightly. Most recently, Calculator! was updated on November 12, 2026 and CALC Smart Calculator ± on November 6, 2026.

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