# ZUKAN vs CatchyNumbers

The clearest difference is ads: CatchyNumbers at none against ZUKAN's shown. CatchyNumbers also leads on update cadence (every 3 days vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. ZUKAN sells 3 one-off in-app purchases and CatchyNumbers sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ZUKAN ships an update every 2 months, CatchyNumbers every 3 days. The most recent releases landed on October 21, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | ZUKAN | CatchyNumbers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/zukan/id1474186413/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 95 MB | 3 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tomohiro Ohwada](https://appshunter.io/developer/991660409) | [BE PLUS S.R.L.](https://appshunter.io/developer/6788669760) |

## What reviewers say

### ZUKAN

[App page](https://appshunter.io/ios/app/zukan/id1474186413)

Explore over 600 items through interactive picture books. Tap photos to hear Japanese and English names, and enjoy sound effects. Features include word learning, quizzes, and a customizable list.

**Highlights:** Over 600 item pictures, Japanese and English audio pronunciation, Sound effects, Word learning, Quiz function, Customizable 'My list'

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ads removal | $1.99 | one-time |
| Development support | $1.99 | one-time |
| Ads removal & Support | $2.99 | one-time |


### CatchyNumbers

[App page](https://appshunter.io/ios/app/catchynumbers-count-123/id6789106326)

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is ZUKAN free?

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

### Is CatchyNumbers free?

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

### Do ZUKAN or CatchyNumbers have ads?

ZUKAN shows ads; CatchyNumbers does not.

### Which is updated more often, ZUKAN or CatchyNumbers?

ZUKAN ships an update every 2 months, and CatchyNumbers every 3 days. Most recently, ZUKAN was updated on October 21, 2026 and CatchyNumbers on October 5, 2026.

---

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