Comparison

Calculator Wcore vs RainbowCalc

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

Head to head
About

Calculator Wcore

Boost your productivity with multiple independent calculators that operate simultaneously. This app offers a beautiful, simple interface and supports multitasking on iPad.

Highlights
  • Multiple independent calculators
  • Simultaneous operation
  • Simple and beautiful interface
  • iPhone, iPad, and Apple Watch support
  • Multitasking on iPad
  • Portrait and landscape orientations
Features
Read full description

#1 Multi-core calculator This calculator offers multiple independent calculators which will step up your productivity to a new level. Calculator Wcore features: • Multiple independent calculators that work simultaneously • Beautiful & simple unique interface • iPhone, iPad & Apple Watch supported • Multitasking (multiple apps on screen at the same time) on iPad via Slide Over and Split View • Both portrait & landscape orientations are supported

About

RainbowCalc

This calculator app offers extensive customization with a wide color picker for backgrounds and keys, enhancing usability and accessibility. It includes a calculation history with sharing options and supports basic arithmetic, percentages, and square roots.

Highlights
  • Customizable background and key colors
  • Advanced color picker
  • Calculation history
  • Share calculations
  • Basic operations
  • Percentage calculations
  • Square root calculations
Features
Read full description

It has large numbers for easy visualization and better usability and accessibility! Easy to use and with easily readable characters! With this customizable calculator, it is possible to change the background and numeric key colors to the ones you like the most, bringing more visual comfort to the user. Thanks to the advanced color picker, you can choose any color! Combine colors with your phone case or device color, stand out with your unique customization. No more limited themes and colors chosen for you! Choose your favorite theme yourself. It also features a history of all calculations, where you can delete them individually or all at once, and the ability to share a calculation via messaging apps. Download this great, lightweight, beautiful, and personalized calculator for free now. • All colors are possible! • Combine colors with your style. • Calculation history and sharing. • Basic operations. • Percentage calculations. • Square root calculations.

Screenshots

Calculator Wcore2 screens
RainbowCalc4 screens

Verdict

The call

The clearest difference is rating: Calculator Wcore at 5.0 against RainbowCalc's 2.0. Calculator Wcore also leads on ads (none vs shown) and monetization model (free vs ad-supported). RainbowCalc's advantage is update cadence (fortnightly vs every 42 months). On price, ratings volume, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Calculator Wcore holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

Calculator Wcore ships an update every 42 months, RainbowCalc fortnightly. The most recent releases landed on November 1, 2026 and October 27, 2026 respectively.

Scorecard5 real differences · 5 level
Calculator Wcore versus RainbowCalc: the parameters behind the verdict, then further details
ParameterCalculator WcoreRainbowCalc
PriceFreeFree
Rating5.0 (2 ratings) — better2.0 (1 ratings)
Positive reviews33.3% of reviews—
Number of ratings2 — better1
Update frequencyEvery 42 monthsFortnightly — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS10.0 — better15.1
Further details — not scored
Size46 MB34 MB
Age rating4+4+
DeveloperAleksandr VaraksaAndre Silva

In-app purchases

None

Calculator Wcore

No in-app purchases

None

RainbowCalc

No in-app purchases

Questions

Is Calculator Wcore free?
Calculator Wcore is free to download, with no in-app purchases.
Is RainbowCalc free?
RainbowCalc is free to download, with no in-app purchases.
Which has better reviews, Calculator Wcore or RainbowCalc?
Calculator Wcore is rated higher. Calculator Wcore averages 5.0 out of 5 from 2 ratings, while RainbowCalc averages 2.0 from 1 ratings.
Do Calculator Wcore or RainbowCalc have ads?
RainbowCalc shows ads; Calculator Wcore does not.
Which is updated more often, Calculator Wcore or RainbowCalc?
Calculator Wcore ships an update every 42 months, and RainbowCalc fortnightly. Most recently, Calculator Wcore was updated on November 1, 2026 and RainbowCalc on October 27, 2026.

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