# Calculator 4U vs Math Sphere

The clearest difference is device support: Math Sphere at 3 against Calculator 4U's 1. Math Sphere also leads on iOS requirement (13.0 vs 18.2). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Calculator 4U | Math Sphere |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 2 MB | 25 MB |
| Requires iOS | 18.2 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Naseer Mohammed](https://appshunter.io/developer/1794812503) | [otsuki hayato](https://appshunter.io/developer/1828600192) |

## What reviewers say

### Calculator 4U

[App page](https://appshunter.io/ios/app/calculator-4u/id6741595255)

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

**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 Calculator 4U free?

Calculator 4U 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 Calculator 4U or Math Sphere have ads?

Neither Calculator 4U nor Math Sphere shows ads.

### Which is updated more often, Calculator 4U or Math Sphere?

Calculator 4U ships an update every 3 weeks, and Math Sphere every 3 weeks. Most recently, Calculator 4U was updated on October 6, 2026 and Math Sphere on October 8, 2026.

---

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