# Math Sphere vs One

The clearest difference is ads: Math Sphere at none against One's shown. Math Sphere also leads on iOS requirement (13.0 vs 15.6). One's advantage is update cadence (daily 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.

Math Sphere ships an update every 3 weeks, One daily. The most recent releases landed on October 8, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Math Sphere | One |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Daily** |
| Size | 25 MB | 6 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [otsuki hayato](https://appshunter.io/developer/1828600192) | [Masaharu Tsukamoto](https://appshunter.io/developer/939316877) |

## What reviewers say

### Math Sphere

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

**Features:** macOS Compatibility

**In-app purchases:** none


### One

[App page](https://appshunter.io/ios/app/one-hand-style-calc-l-calc/id6759515218)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Math Sphere free?

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

### Is One free?

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

### Do Math Sphere or One have ads?

One shows ads; Math Sphere does not.

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

Math Sphere ships an update every 3 weeks, and One daily. Most recently, Math Sphere was updated on October 8, 2026 and One on October 16, 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.*