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 comprehensive scientific calculator with multiple modes, including algebraic, scientific, conversions, and logic calculations. It features a user-friendly design with large buttons and remembers your progress if interrupted.

Highlights
  • Algebraic entry
  • Scientific calculations
  • Unit conversions (length, area, volume, etc.)
  • Logic calculator (binary, octal, decimal, hex)
  • 10 memory registers
  • Wide number range support
Features
Read full description

Here's a full-featured scientific calculator for your iPhone or iPod touch. It's really six calculators in one, with new button sets exposed by a tap on the tab bar. Features are important, but it's the little things that count, right? Little things like a design that looks like it belongs on your iPhone; big, easy to press buttons; a delete key in case you hit the wrong one; and picking up right where you left off if you are interrupted by a phone call--even in the middle of entering a number. Features: 1. Algebraic entry 2. Scientific calculations 3. Conversions for - Length - Area - Volume - Temperature - Mass - Speed 4. Logic calculator supporting base 2, 8, 10 and 16 5. 10 memory registers 6. Numbers range from about 1e-313 to 1e308 7. Displays 14 significant digits

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

Calculator4 screens
CALC Smart Calculator ±4 screens

Verdict

The call

The clearest difference is price: CALC Smart Calculator ± at Free against Calculator's $1.99. CALC Smart Calculator ± also leads on rating (4.8 vs 4.0) and update cadence (fortnightly vs every 11 months). Calculator's advantage is in-app purchases (none vs 4) and iOS requirement (15.6 vs 17.0). On 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 $1.99 up front. CALC Smart Calculator ± sells 4 in-app purchases, starting at $0.99 per 3 months. Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

CALC Smart Calculator ± holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: CALC Smart Calculator ± has 2.4K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 60% of Calculator's written reviews are positive against 87% of CALC Smart Calculator ±'s.

UpkeepUpdate frequency

Calculator ships an update every 11 months, CALC Smart Calculator ± fortnightly. The most recent releases landed on October 31, 2026 and November 1, 2026 respectively.

Scorecard9 real differences · 1 level
Calculator versus CALC Smart Calculator ±: the parameters behind the verdict, then further details
ParameterCalculatorCALC Smart Calculator ±
Price$1.99Free — better
Rating4.0 (1 ratings)4.8 (2.4K ratings) — better
Positive reviews60.0% of reviews87.3% of reviews — better
Number of ratings12.4K — better
Update frequencyEvery 11 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPodiPhone, iPad, Mac, Apple Watch — better
Requires iOS15.6 — better17.0
Further details — not scored
Size5 MB16 MB
Age rating4+4+
DeveloperByte Works, Inc.QApps LLC

Customer experience

Calculator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews10 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

CALC Smart Calculator ±

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

Bugs and requests

Calculator

Not enough reviews yet to summarise bugs or 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

In-app purchases

None

Calculator

No 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

Questions

Is Calculator free?
Calculator costs $1.99, with no 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 ±?
CALC Smart Calculator ± is rated higher. Calculator averages 4.0 out of 5 from 1 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 11 months, and CALC Smart Calculator ± fortnightly. Most recently, Calculator was updated on October 31, 2026 and CALC Smart Calculator ± on November 1, 2026.

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