Calculator Wcore vs RainbowCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator Wcore
Boost your productivity with multiple independent calculators that operate simultaneously. This app offers a beautiful, simple interface and supports multitasking on iPad.
- Multiple independent calculators
- Simultaneous operation
- Simple and beautiful interface
- iPhone, iPad, and Apple Watch support
- Multitasking on iPad
- Portrait and landscape orientations
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#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
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.
- Customizable background and key colors
- Advanced color picker
- Calculation history
- Share calculations
- Basic operations
- Percentage calculations
- Square root calculations
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
Calculator Wcore ships an update every 42 months, RainbowCalc fortnightly. The most recent releases landed on November 1, 2026 and October 27, 2026 respectively.
| Parameter | Calculator Wcore | RainbowCalc |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 2.0 (1 ratings) |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 42 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 46 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Aleksandr Varaksa | Andre Silva |
In-app purchases
Calculator Wcore
No in-app purchases
RainbowCalc
No in-app purchases









