# CAJ Converter vs 纳米AI

The clearest difference is update cadence: 纳米AI at weekly against CAJ Converter's every 2 months. CAJ Converter's advantage is iOS requirement (12.0 vs 15.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. CAJ Converter sells 3 in-app purchases, starting at $2.99 per month and 纳米AI sells 14 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

CAJ Converter ships an update every 2 months, 纳米AI weekly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | CAJ Converter | 纳米AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (211 ratings)](https://appshunter.io/ios/app/ai/id6737763506/reviews)** |
| Number of ratings | — | **211** |
| Positive reviews | 47.6% of reviews | **53.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 55 MB | 232 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Meitian Trading](https://appshunter.io/developer/1549616114) | [Beijing Qihoo Technology Co Ltd](https://appshunter.io/developer/441216575) |

## What reviewers say

### CAJ Converter

[App page](https://appshunter.io/ios/app/caj-converter/id1603045684)

Easily convert Chinese academic journal files (CAJ, NH, KDH) into PDF or Word documents. Extract text for editing or create clear PDF versions for reading and sharing.

**Highlights:** Convert CAJ to PDF, Convert CAJ to Word, Text recognition for Word conversion, Preview before PDF export, Supports .caj, .nh, .kdh formats

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP月会员 | $2.99 | per month |
| VIP季会员 | $4.99 | per 3 months |
| VIP年会员 | $7.99 | per year |


### 纳米AI

[App page](https://appshunter.io/ios/app/ai/id6737763506)

This app acts as a super intelligent agent, generating expert-level videos, reports, and presentations from simple text prompts. It offers specialized AI agents for various tasks, including image editing, digital human video creation, and PPT generation, all powered by multiple large language models.

**Highlights:** Generate videos, reports, and PPTs from text, Specialized AI agents for various tasks, Digital human video creation, Professional image editing, PPT generation from themes or files, Integrated with 16 large language models, Personalized knowledge base

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

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包月VIP | $6.99 | per month |
| 连续包季VIP | $19.99 | per 3 months |
| 连续包年VIP | $69.99 | per year |
| 100纳米 | $0.99 | one-time |
| 300纳米 | $3.99 | one-time |
| 1个月VIP | $7.99 | one-time |
| 1000纳米 | $14.99 | one-time |
| 6个月VIP | $49.99 | one-time |
| 年卡（活动） | $59.99 | one-time |
| 5000纳米 | $69.99 | one-time |
| 15个月VIP（限时活动） | $79.99 | one-time |
| 12个月VIP | $79.99 | one-time |
| 36个月 | $99.99 | one-time |
| 10000纳米 | $149.99 | one-time |

**What reviewers like**

- 🚀 Fast search and text organization capabilities
- 👍 Feels good
- 🚀 Fast response speed
- 👍 Convenient and practical

**What reviewers complain about**

- 🐛 No dark mode
- 🐛 Unable to open on Apple Mac
- 🗑️ Trash software
- 🗑️ Deceptive advertising
- 🗑️ Terrible company and software

**Reported bugs**

- Unable to receive verification code for overseas users
- App crashes on older devices

**Requested features**

- Dark mode option
- AI video generation queue improvement


## Frequently asked questions

### Is CAJ Converter free?

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

### Is 纳米AI free?

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

### Do CAJ Converter or 纳米AI have ads?

Neither CAJ Converter nor 纳米AI shows ads.

### Which is updated more often, CAJ Converter or 纳米AI?

CAJ Converter ships an update every 2 months, and 纳米AI weekly. Most recently, CAJ Converter was updated on October 24, 2026 and 纳米AI on October 25, 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.*