# NB连环画阅读器 vs 51连环

The clearest difference is price: 51连环 at Free against NB连环画阅读器's $4.99. 51连环 also leads on device support. On in-app purchases and iOS requirement there is nothing between them.

51连环 is free to download; NB连环画阅读器 costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | NB连环画阅读器 | 51连环 |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Daily |
| Size | 23 MB | 30 MB |
| Requires iOS | 8.0 | 8.0 |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [立强 陈](https://appshunter.io/developer/1076095010) | [上海曜宁信息科技有限公司](https://appshunter.io/developer/1271993596) |

## What reviewers say

### NB连环画阅读器

[App page](https://appshunter.io/ios/app/nb/id1621661587)

**In-app purchases:** none


### 51连环

[App page](https://appshunter.io/ios/app/51/id6502535452)

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

**In-app purchases:** none


## Frequently asked questions

### Is NB连环画阅读器 free?

NB连环画阅读器 costs $4.99, with no in-app purchases.

### Is 51连环 free?

51连环 is free to download, with no in-app purchases.

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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.*