# 五十音圖Pro vs 纳豆题库

The clearest difference is price: 纳豆题库 at Free against 五十音圖Pro's $1.99. 五十音圖Pro's advantage is update cadence (every 2 months vs every 25 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

纳豆题库 is free to download; 五十音圖Pro costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

五十音圖Pro ships an update every 2 months, 纳豆题库 every 25 months. The most recent releases landed on October 1, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | 五十音圖Pro | 纳豆题库 |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 25 months |
| Size | 51 MB | 47 MB |
| Requires iOS | 10.0 | **9.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [文涛 隋](https://appshunter.io/developer/1212355458) | [Zhengzhou Qingkong Cultural Communication Co.Ltd.](https://appshunter.io/developer/1564704370) |

## What reviewers say

### 五十音圖Pro

[App page](https://appshunter.io/ios/app/pro/id1372554304)

**Features:** Vision Pro support

**In-app purchases:** none


### 纳豆题库

[App page](https://appshunter.io/ios/app/jlpt/id1495302393)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 五十音圖Pro free?

五十音圖Pro costs $1.99, with no in-app purchases.

### Is 纳豆题库 free?

纳豆题库 is free to download, with no in-app purchases.

### Do 五十音圖Pro or 纳豆题库 have ads?

Neither 五十音圖Pro nor 纳豆题库 shows ads.

### Which is updated more often, 五十音圖Pro or 纳豆题库?

五十音圖Pro ships an update every 2 months, and 纳豆题库 every 25 months. Most recently, 五十音圖Pro was updated on October 1, 2026 and 纳豆题库 on October 3, 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.*