# Nanzoo Clock vs Math Joy

The clearest difference is review sentiment: Nanzoo Clock at 100% against Math Joy's 33%. Nanzoo Clock also leads on update cadence (every 10 days vs every 46 months). Math Joy's advantage is device support. On price, in-app purchases, monetization model and iOS requirement there is nothing between them.

Both are free to download. Nanzoo Clock sells 1 one-off in-app purchase and Math Joy sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Nanzoo Clock ships an update every 10 days, Math Joy every 46 months. The most recent releases landed on October 23, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Nanzoo Clock | Math Joy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (9 ratings)](https://appshunter.io/ios/app/math-joy-kids-learning-games/id662503354/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | **100.0% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | — | No |
| Update frequency | **Every 10 days** | Every 46 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 38 MB | 64 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Takafumi Sasaki](https://appshunter.io/developer/625986968) | [Stoyan Hristov](https://appshunter.io/developer/584595816) |

## What reviewers say

### Nanzoo Clock

[App page](https://appshunter.io/ios/app/nanzoo-clock/id625986965)

This educational app teaches children aged 3-7 how to tell time using interactive clock activities. Users can select animal clocks and practice setting and reading time with adjustable difficulty levels.

**Highlights:** Interactive animal clocks, Set the time activity, Read the time activity, Adjustable difficulty levels, Parent gate for purchases, No ads or tracking

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Level Unlock | $0.99 | one-time |


### Math Joy

[App page](https://appshunter.io/ios/app/math-joy-kids-learning-games/id662503354)

This app offers a fun and engaging way for children to build foundational math skills. It uses interactive games, visual aids, and a reward system to make learning numbers, addition, subtraction, shapes, and more enjoyable.

**Highlights:** Counting items, Addition and subtraction, Identifying colors and shapes, Comparing items and positions, Reward system with stars, Visual aids with animals

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Levels | $1.99 | one-time |


## Frequently asked questions

### Is Nanzoo Clock free?

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

### Is Math Joy free?

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

### Which is updated more often, Nanzoo Clock or Math Joy?

Nanzoo Clock ships an update every 10 days, and Math Joy every 46 months. Most recently, Nanzoo Clock was updated on October 23, 2026 and Math Joy on November 1, 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.*