# Kidiyo vs Math Ninja

Kidiyo and Math Ninja are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Kidiyo sells 2 in-app purchases, starting at $2.99 per month and Math Ninja sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Kidiyo ships an update monthly, Math Ninja every 3 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Kidiyo | Math Ninja |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Size | 252 MB | 13 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kids Worldwide Factory](https://appshunter.io/developer/1264009838) | [Mustafa Tugrul Firat](https://appshunter.io/developer/6789868437) |

## What reviewers say

### Kidiyo

[App page](https://appshunter.io/ios/app/kidiyo-play-to-learn/id1296241552)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Maandelijks abonnement | $2.99 | per month |
| Jaarlijks abonnement | $24.99 | per year |


### Math Ninja

[App page](https://appshunter.io/ios/app/math-ninja-slice-and-solve/id6790400075)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Master Ninja Unlock | $2.99 | one-time |


## Frequently asked questions

### Is Kidiyo free?

Kidiyo is free to download, with in-app purchases available.

### Is Math Ninja free?

Math Ninja is free to download, with in-app purchases available.

### Do Kidiyo or Math Ninja have ads?

Neither Kidiyo nor Math Ninja shows ads.

### Which is updated more often, Kidiyo or Math Ninja?

Kidiyo ships an update monthly, and Math Ninja every 3 weeks. Most recently, Kidiyo was updated on October 24, 2026 and Math Ninja on October 28, 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.*