# Math Sphere vs Chroma Calc Pro

The clearest difference is ads: Math Sphere at none against Chroma Calc Pro's shown. Math Sphere also leads on update cadence (every 3 weeks vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Math Sphere ships an update every 3 weeks, Chroma Calc Pro every 3 months. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Math Sphere | Chroma Calc Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Size | 25 MB | 32 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [otsuki hayato](https://appshunter.io/developer/1828600192) | [Mustafa Kilic](https://appshunter.io/developer/1628559720) |

## What reviewers say

### Math Sphere

[App page](https://appshunter.io/ios/app/math-sphere/id6749747366)

**Features:** macOS Compatibility

**In-app purchases:** none


### Chroma Calc Pro

[App page](https://appshunter.io/ios/app/chroma-calc-pro-calculator/id6751474764)

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

**In-app purchases:** none


## Frequently asked questions

### Is Math Sphere free?

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

### Is Chroma Calc Pro free?

Chroma Calc Pro is free to download, with no in-app purchases.

### Do Math Sphere or Chroma Calc Pro have ads?

Chroma Calc Pro shows ads; Math Sphere does not.

### Which is updated more often, Math Sphere or Chroma Calc Pro?

Math Sphere ships an update every 3 weeks, and Chroma Calc Pro every 3 months. Most recently, Math Sphere was updated on October 8, 2026 and Chroma Calc Pro on October 4, 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.*