# Math vs RainbowCalc

The clearest difference is in-app purchases: RainbowCalc at none against Math's 1. RainbowCalc also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.0). Math's advantage is update cadence (every 3 days vs fortnightly). On price and ads there is nothing between them.

Both are free to download. Math sells 1 one-off in-app purchase. RainbowCalc asks for nothing beyond the download.

Math ships an update every 3 days, RainbowCalc fortnightly. Both last shipped on October 27, 2026.

## The numbers

| Metric | Math | RainbowCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/rainbowcalc/id6479331134/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 3 days** | Fortnightly |
| Monetization | — | Ad-supported |
| Size | 11 MB | 34 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [IgKnight Technologies Ltd](https://appshunter.io/developer/1023379804) | [Andre Silva](https://appshunter.io/developer/1719182490) |

## What reviewers say

### Math

[App page](https://appshunter.io/ios/app/math-calculator-widget-17/id6467422101)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads + All colors | $1.99 | one-time |


### RainbowCalc

[App page](https://appshunter.io/ios/app/rainbowcalc/id6479331134)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Math free?

Math is free to download, with in-app purchases available.

### Is RainbowCalc free?

RainbowCalc is free to download, with no in-app purchases.

### Do Math or RainbowCalc have ads?

Both Math and RainbowCalc show ads.

### Which is updated more often, Math or RainbowCalc?

Math ships an update every 3 days, and RainbowCalc fortnightly. Most recently, Math was updated on October 27, 2026 and RainbowCalc on October 27, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*