Comparison

Basic Calculator vs Calculator +ㅤ

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

Head to head
About

Basic Calculator

A free, classic calculator app with large, easy-to-press buttons and customizable skins. It supports basic arithmetic, memory functions, and can handle very large numbers without using scientific notation. Multitasking is also supported on compatible devices.

Highlights
  • Large, easy-to-press buttons
  • Multiple beautiful skins
  • Basic arithmetic operations
  • Standard memory functions
  • Supports large numbers (up to 60 digits)
  • Multitasking support (Split View, Slide Over)
Read full description

Calculator Free is a great free calculator with beautiful HD graphics and multiple skins! Features: - Supports multitasking on iPad devices - Split View and Slide Over features - Multiple beautiful skins - General calculations: adding, subtracting, multiplying, dividing, square-rooting - Standard memory functions: Memory Addition, Memory Subtraction, Memory Recall, Memory Clear - Thousands separators option - Can handle very large numbers - up to 60 digits! (never displays in scientific notation) - Large, easy to press buttons - Copy / Paste buttons - Key click sound effect The user interface is translated in the following languages: English, Spanish, French, Italian, German, Portuguese, Russian, Japanese, Chinese (simplified and traditional), Dutch, Norwegian, Danish, Korean, Turkish, Indonesian, Finnish, Swedish, Greek, Polish, Czech, Hungarian, Slovak, Bulgarian.

About

Calculator +ㅤ

This app simplifies math with basic, scientific, and fraction calculations. It also features a unique snap-and-scribble function to solve problems from photos. Customize your experience with themes and access a calculation history.

Highlights
  • Snap and Scribble Calculator
  • Basic Calculator
  • Scientific Calculator
  • Fraction Calculator
  • Currency Converter
  • Calculation History
  • Customizable Themes
Features
Read full description

Calculator + App, the simplest way to make Math easy! Whether it's basic, scientific, fractions or even solving a problem you take a picture of. We've got you covered! • Snap and Scribble Calculator (NEW!) • Optimized for iPhone & iPad • Basic Calculator • Scientific Calculator • Fraction Calculator • Currrency Converter • Calculation History • Customize with Themes • Simple & Intuitive Design Introducing Rocket Apps PRO: With Rocket Apps PRO you simply subscribe once and get access to all supported Rocket Apps. The best part: we will keep adding new Apps. SUPPORT Our goal is to build the best apps in the world. You can help us by reporting bugs and requesting features via Email: help@rocketapps.com TERMS & PRIVACY https://rocketapps.com/privacy.html https://rocketapps.com/terms.html SUBSCRIPTION TERMS: The App offers an auto-renewing monthly or yearly subscription to provide you with unlimited access to all PRO Features while you maintain an active subscription. Payment will be charged to the credit card connected to your iTunes Account when you confirm the initial subscription purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. Your account will be charged for renewal within 24-hours prior to the end of the current period, and the cost of the renewal will be identified. You may manage your subscription and auto-renewal may be turned off by going to your Account Settings after the purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription, where applicable.

Screenshots

Basic Calculator4 screens
Calculator +ㅤ4 screens

Verdict

The call

The clearest difference is monetization model: Basic Calculator at free with in-app purchases against Calculator +ㅤ's subscription. Basic Calculator also leads on review sentiment (74% vs 46%) and rating (4.8 vs 4.6). Calculator +ㅤ's advantage is update cadence (fortnightly vs every 2 months). On price, ratings volume, ads and in-app purchases 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. Basic Calculator sells 1 one-off in-app purchase and Calculator +ㅤ sells 6 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Basic Calculator holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 3.2K and 4.5K respectively. Written reviews point the same way: 74% of Basic Calculator's written reviews are positive against 46% of Calculator +ㅤ's.

UpkeepUpdate frequency

Basic Calculator ships an update every 2 months, Calculator +ㅤ fortnightly. Both last shipped on September 23, 2026.

Scorecard4 real differences · 6 level
Basic Calculator versus Calculator +ㅤ: the parameters behind the verdict, then further details
ParameterBasic CalculatorCalculator +ㅤ
PriceFreeFree
Rating4.8 (3.2K ratings) — better4.6 (4.5K ratings)
Positive reviews74.3% of reviews — better45.9% of reviews
Number of ratings3.2K4.5K — better
Update frequencyEvery 2 monthsFortnightly — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size93 MB55 MB
Age rating+44+
DeveloperMobArtsRocket Apps GmbH

Customer experience

Basic Calculator

All ratings3,192 ratings
Positive96.0%
Neutral2.5%
Negative1.5%
Written reviews70 reviews
Positive74.3%
Neutral1.4%
Negative24.3%

Calculator +ㅤ

All ratings4,519 ratings
Positive89.8%
Neutral3.6%
Negative6.6%
Written reviews135 reviews
Positive45.9%
Neutral8.1%
Negative45.9%

User reviews

Basic Calculator

From 3.2K App Store ratings

What we love

  • 👍 Simple and easy to use
  • 💡 Useful copy and paste functions
  • 👍 Clear and large display
  • 👍 Variety of skins/themes
  • 👍 Responsive and fast

Room to improve

  • 🐛 Compatibility issues with iOS updates
  • 🐛 Inaccurate calculations with larger numbers
  • 🔋 Slow load times
  • 🔍 Intrusive ads

Calculator +ㅤ

From 4.5K App Store ratings

What we love

  • 👍 Easy to use
  • 🚀 Accurate calculations
  • 🎨 Excellent visuals
  • 💡 Helpful for academic work

Room to improve

  • 💰 Subscription model too expensive
  • 🔍 Decimal entry quirks
  • 📺 Too many ads
  • 🔒 Locked features behind paywall

Bugs and requests

Basic Calculator

Reported bugs

2 issues
  • Crashes or freezes after iOS updates
  • Percent key not functioning correctly

Requested features

3 requests
  • Reinstate iPhone version
  • Add scientific calculator functions
  • Improve memory retention

Calculator +ㅤ

Reported bugs

3 issues
  • Inaccurate square root calculations
  • Compatibility issues on iPad
  • Decimal point not recognized

Requested features

4 requests
  • Negative number support
  • Improved fraction calculator
  • Scientific calculator layout
  • Option to disable history feature

In-app purchases

1 purchases

Basic Calculator

One-time1
  • Banner Ad Removal$0.99
6 purchases

Calculator +ㅤ

Subscriptions6
  • Rocket Apps PRO Weekly3 Days trial$2.997 Days
  • Rocket Apps PRO Monthly3 Days trial$4.991 Month
  • Rocket Apps PRO Yearly3 Days trial$9.991 Year
Show 3 more
  • Rocket Apps PRO Offer1 Year trial$19.991 Year
  • Rocket Apps PRO Yearly3 Days trial$19.991 Year
  • Rocket Apps PRO Yearly3 Days trial$29.991 Year

Questions

Is Basic Calculator free?
Basic Calculator is free to download, with in-app purchases available.
Is Calculator +ㅤ free?
Calculator +ㅤ is free to download, with in-app purchases available.
Which has better reviews, Basic Calculator or Calculator +ㅤ?
Basic Calculator is rated higher. Basic Calculator averages 4.8 out of 5 from 3.2K ratings, while Calculator +ㅤ averages 4.6 from 4.5K ratings.
Do Basic Calculator or Calculator +ㅤ have ads?
Both Basic Calculator and Calculator +ㅤ show ads.
Which is updated more often, Basic Calculator or Calculator +ㅤ?
Basic Calculator ships an update every 2 months, and Calculator +ㅤ fortnightly. Most recently, Basic Calculator was updated on September 23, 2026 and Calculator +ㅤ on September 23, 2026.

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