# ZEG COUNTER vs Math Sphere

The clearest difference is update cadence: ZEG COUNTER at every 10 days against Math Sphere's every 3 weeks. Math Sphere's advantage is iOS requirement (13.0 vs 18.4). On price, ads, 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.

ZEG COUNTER ships an update every 10 days, Math Sphere every 3 weeks. The most recent releases landed on October 2, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | ZEG COUNTER | Math Sphere |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Size | 5 MB | 25 MB |
| Requires iOS | 18.4 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HIROYUKI HONDA](https://appshunter.io/developer/1761841238) | [otsuki hayato](https://appshunter.io/developer/1828600192) |

## What reviewers say

### ZEG COUNTER

[App page](https://appshunter.io/ios/app/zeg-counter/id6636495173)

**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 ZEG COUNTER free?

ZEG COUNTER 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 ZEG COUNTER or Math Sphere have ads?

Neither ZEG COUNTER nor Math Sphere shows ads.

### Which is updated more often, ZEG COUNTER or Math Sphere?

ZEG COUNTER ships an update every 10 days, and Math Sphere every 3 weeks. Most recently, ZEG COUNTER was updated on October 2, 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.*