Comparison

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

Calculator

This utility app offers a straightforward calculation experience with a vast selection of over 80 customizable themes. Personalize your calculator's appearance to suit your style while performing everyday math tasks.

Highlights
  • Basic calculations
  • Over 80 themes
  • Theme customization
  • Easy to use interface
Features
Read full description

Calculators (8 modes): Basic — everyday four-function calculator Scientific — trig, logs, powers, roots Tip & Split — tip, total, and per-person split Discount — sale price and how much you save (with tax) Loan — monthly payment with interest Savings — grow a balance over time Unit Price — compare price per unit Convert — length, weight, volume, temperature Personalization: 70+ themes (photo backgrounds, textures, solids) Any accent colour — pick a swatch or dial a custom shade on the colour wheel

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

Calculator4 screens
Calculator +ㅤ4 screens

Verdict

The call

The clearest difference is monetization model: Calculator at free with in-app purchases against Calculator +ㅤ's subscription. Calculator also leads on ratings volume (146K vs 4.5K). On price, rating, review sentiment 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. 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

On the App Store both sit at effectively the same score — 4.5 for Calculator against 4.6 for Calculator +ㅤ. That said, the two scores are not equally well evidenced: Calculator has 146K ratings behind it against 4.5K, so its average is the more settled of the two. Written reviews are what separate them: 52% of Calculator's written reviews are positive against 46% of Calculator +ㅤ's.

UpkeepUpdate frequency

Calculator ships an update every 4 weeks, Calculator +ㅤ fortnightly. The most recent releases landed on September 25, 2026 and September 23, 2026 respectively.

Scorecard2 real differences · 8 level
Calculator versus Calculator +ㅤ: the parameters behind the verdict, then further details
ParameterCalculatorCalculator +ㅤ
PriceFreeFree
Rating4.5 (146K ratings)4.6 (4.5K ratings) — better
Positive reviews51.5% of reviews — better45.9% of reviews
Number of ratings146K — better4.5K
Update frequencyEvery 4 weeksFortnightly — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size82 MB55 MB
Age rating4+4+
DeveloperThe App Tower Inc.Rocket Apps GmbH

Customer experience

Calculator

All ratings146,341 ratings
Positive86.6%
Neutral4.3%
Negative9.1%
Written reviews594 reviews
Positive51.5%
Neutral7.6%
Negative40.9%

Calculator +ㅤ

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

User reviews

Calculator

From 146K App Store ratings

What we love

  • 👍 Easy to use
  • 🎨 Customizable backgrounds
  • 💯 Accurate calculations
  • 🆒 Unique design
  • 🔍 Helpful for schoolwork

Room to improve

  • 💸 Ads disrupt usage
  • 🔒 Requires payment to remove ads
  • 🔀 Cannot rotate to landscape mode
  • 🐛 Occasional calculation errors
  • 📵 Freezes during use

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

Calculator

Reported bugs

2 issues
  • Ads freeze the app
  • Incorrect results for certain calculations

Requested features

4 requests
  • Add fraction support
  • Implement a calculation history feature
  • Provide more background theme options
  • Allow landscape mode on tablets

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

Calculator

One-time1
  • Ad Free Calculator$4.99
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 Calculator free?
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, Calculator or Calculator +ㅤ?
Calculator +ㅤ is rated higher. Calculator averages 4.5 out of 5 from 146K ratings, while Calculator +ㅤ averages 4.6 from 4.5K ratings.
Do Calculator or Calculator +ㅤ have ads?
Both Calculator and Calculator +ㅤ show ads.
Which is updated more often, Calculator or Calculator +ㅤ?
Calculator ships an update every 4 weeks, and Calculator +ㅤ fortnightly. Most recently, Calculator was updated on September 25, 2026 and Calculator +ㅤ on September 23, 2026.

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