# 大夏书系 vs Book Catalog

The clearest difference is in-app purchases: Book Catalog at none against 大夏书系's 7. 大夏书系's advantage is iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. 大夏书系 sells 7 one-off in-app purchases. Book Catalog asks for nothing beyond the download.

## The numbers

| Metric | 大夏书系 | Book Catalog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | — |
| Size | 193 MB | 5 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ECNU Press](https://appshunter.io/developer/496874216) | [Alex Gameli Heyman](https://appshunter.io/developer/1529812783) |

## What reviewers say

### 大夏书系

[App page](https://appshunter.io/ios/app/id6460689596)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 12教育币 | $1.99 | one-time |
| 月卡 | $2.99 | one-time |
| 30教育币 | $3.99 | one-time |
| 季卡 | $6.99 | one-time |
| 50教育币 | $6.99 | one-time |
| 年卡 | $14.99 | one-time |
| 98教育币 | $14.99 | one-time |


### Book Catalog

[App page](https://appshunter.io/ios/app/book-catalog-shelf-scanner/id6801512523)

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

**In-app purchases:** none


## Frequently asked questions

### Is 大夏书系 free?

大夏书系 is free to download, with in-app purchases available.

### Is Book Catalog free?

Book Catalog is free to download, with no in-app purchases.

### Do 大夏书系 or Book Catalog have ads?

Neither 大夏书系 nor Book Catalog shows ads.

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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.*