# Nutstore vs CAJ阅读器

Nutstore and CAJ阅读器 both sit at 4.7 stars, but that hides the real split: 89% of Nutstore's written reviews are positive against 0% of CAJ阅读器's. Nutstore also leads on ratings volume (431 vs 10). CAJ阅读器's advantage is update cadence (every 11 days vs monthly) and iOS requirement (11.0 vs 15.0). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Nutstore sells 2 in-app purchases, starting at $34.99 per year and CAJ阅读器 sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Nutstore against 4.6 for CAJ阅读器. That said, the two scores are not equally well evidenced: Nutstore has 431 ratings behind it against 10, so its average is the more settled of the two. Written reviews are what separate them: 89% of Nutstore's written reviews are positive against 0% of CAJ阅读器's.

Nutstore ships an update monthly, CAJ阅读器 every 11 days. The most recent releases landed on October 19, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Nutstore | CAJ阅读器 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (431 ratings)](https://appshunter.io/ios/app/nutstore-cloud-storage-and-backup/id444442371/reviews)** | [4.6 (10 ratings)](https://appshunter.io/ios/app/caj-caj/id6447676025/reviews) |
| Number of ratings | **431** | 10 |
| Positive reviews | **89.2% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 11 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 108 MB | 45 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yicun Network Technology Co. Ltd.](https://appshunter.io/developer/444442374) | [Light Speed Intelligence Technology Co., Ltd.](https://appshunter.io/developer/1670291399) |

## What reviewers say

### Nutstore

[App page](https://appshunter.io/ios/app/nutstore-cloud-storage-and-backup/id444442371)

Securely store, sync, and access your files from any device. Organize and share documents, photos, and videos with features like offline access and version history. Offers professional-grade cloud storage with flexible subscription plans.

**Highlights:** Automatic file synchronization across devices, Offline access via favorite folders, File sharing with access control, Incremental backup and version history, WebDAV protocol support for third-party apps, Smart file viewer with reading position restore

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nutstore Pro for One Year | $34.99 | per year |
| Nutstore Advanced Pro for One Year | $69.99 | per year |

**What reviewers like**

- 🚀 Fast and reliable sync across multiple platforms
- 👍 Simple, clean, and intuitive user interface
- 🔒 Secure and private cloud storage solution
- 🌍 Works seamlessly in China without blocking
- 💼 Excellent for cross-platform file sharing and collaboration

**What reviewers complain about**

- 📦 Limited free storage capacity (1GB)
- ⚠️ Easy to accidentally change local/cloud sync settings
- 🔘 Non-intuitive folder sync setup process
- 👥 Limited number of people for folder sharing
- 📹 Free version has insufficient bandwidth for video uploads

**Reported bugs**

- Cannot upload local photos on iPhone 5, 5s, 7 Plus
- App crashes when selecting files to upload from other apps (v5.0.1)
- Large PDF files (>20MB) fail to open with no download indicator
- Sync status information displays incorrectly
- Poor customer support response for technical issues

**Requested features**

- Increase free storage capacity to 3GB monthly for uploads/downloads
- Add Face ID authentication option for iOS
- Improve Windows client startup speed
- Add thumbnail preview for image files instead of generic icons
- Increase free version bandwidth for video uploads


### CAJ阅读器

[App page](https://appshunter.io/ios/app/caj-caj/id6447676025)

This app is a professional reader for CAJ documents, supporting academic papers, journals, and magazines. It also offers conversion tools to transform CAJ files into Word or PDF, and handles various PDF format conversions with other office documents.

**Highlights:** CAJ document viewing, CAJ to Word conversion, CAJ to PDF conversion, PDF to Office file conversion, Supports academic papers and journals

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月会员 | $2.99 | per month |
| 年会员 | $12.99 | per year |
| 永久会员 | $14.99 | one-time |


## Frequently asked questions

### Is Nutstore free?

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

### Is CAJ阅读器 free?

CAJ阅读器 is free to download, with in-app purchases available.

### Which has better reviews, Nutstore or CAJ阅读器?

Nutstore is rated higher. Nutstore averages 4.7 out of 5 from 431 ratings, while CAJ阅读器 averages 4.6 from 10 ratings.

### Do Nutstore or CAJ阅读器 have ads?

Neither Nutstore nor CAJ阅读器 shows ads.

### Which is updated more often, Nutstore or CAJ阅读器?

Nutstore ships an update monthly, and CAJ阅读器 every 11 days. Most recently, Nutstore was updated on October 19, 2026 and CAJ阅读器 on October 5, 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.*