# CalcSpeed vs Math Sphere

The clearest difference is ads: Math Sphere at none against CalcSpeed's shown. Math Sphere also leads on iOS requirement (13.0 vs 15.1). CalcSpeed's advantage is update cadence (every 3 days vs every 3 weeks). On price, in-app purchases and device support there is nothing between them.

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

CalcSpeed ships an update every 3 days, Math Sphere every 3 weeks. The most recent releases landed on October 13, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | CalcSpeed | Math Sphere |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Size | 17 MB | 25 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [株式会社GalleryApp](https://appshunter.io/developer/1799338721) | [otsuki hayato](https://appshunter.io/developer/1828600192) |

## What reviewers say

### CalcSpeed

[App page](https://appshunter.io/ios/app/calcspeed-easy-calculator/id6742673257)

**Features:** macOS Compatibility

**In-app purchases:** none


### Math Sphere

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CalcSpeed free?

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

### Is Math Sphere free?

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

### Do CalcSpeed or Math Sphere have ads?

CalcSpeed shows ads; Math Sphere does not.

### Which is updated more often, CalcSpeed or Math Sphere?

CalcSpeed ships an update every 3 days, and Math Sphere every 3 weeks. Most recently, CalcSpeed was updated on October 13, 2026 and Math Sphere on October 8, 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.*