# 超教科書 vs MUSHIDB.com

The clearest difference is in-app purchases: 超教科書 at none against MUSHIDB.com's 4. 超教科書 also leads on iOS requirement (17.0 vs 26.4). MUSHIDB.com's advantage is update cadence (every 2 weeks vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. MUSHIDB.com sells 4 in-app purchases, starting at $2.99 per month. 超教科書 asks for nothing beyond the download.

超教科書 ships an update every 6 months, MUSHIDB.com every 2 weeks. The most recent releases landed on October 1, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | 超教科書 | MUSHIDB.com |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Size | 24 MB | 8 MB |
| Requires iOS | **17.0** | 26.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [BPS Co., Ltd.](https://appshunter.io/developer/382218933) | [supr](https://appshunter.io/developer/1896577349) |

## What reviewers say

### 超教科書

[App page](https://appshunter.io/ios/app/id1487009319)

**Features:** Vision Pro support

**In-app purchases:** none


### MUSHIDB.com

[App page](https://appshunter.io/ios/app/mushidbcom/id6768483687)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard Plan | $2.99 | per month |
| Pro 500 Plan | $29.99 | per month |
| Pro Master Plan | $59.99 | per month |
| Light Plan | $1.99 | one-time |


## Frequently asked questions

### Is 超教科書 free?

超教科書 is free to download, with no in-app purchases.

### Is MUSHIDB.com free?

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

### Do 超教科書 or MUSHIDB.com have ads?

Neither 超教科書 nor MUSHIDB.com shows ads.

### Which is updated more often, 超教科書 or MUSHIDB.com?

超教科書 ships an update every 6 months, and MUSHIDB.com every 2 weeks. Most recently, 超教科書 was updated on October 1, 2026 and MUSHIDB.com on October 8, 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.*