# 浙江CA互认 vs NCAAI

The clearest difference is update cadence: NCAAI at monthly against 浙江CA互认's every 7 months. 浙江CA互认's advantage is iOS requirement (9.2 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

浙江CA互认 ships an update every 7 months, NCAAI monthly. The most recent releases landed on September 9, 2026 and July 28, 2026 respectively.

## The numbers

| Metric | 浙江CA互认 | NCAAI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Monthly** |
| Size | 97 MB | 36 MB |
| Requires iOS | **9.2** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Zhejiang public resources trading center](https://appshunter.io/developer/1583677802) | [NATIONAL CENTER FOR MEDICAL SERVICES CO. LTD](https://appshunter.io/developer/1619566942) |

## What reviewers say

### 浙江CA互认

[App page](https://appshunter.io/ios/app/ca/id1583677800)

**In-app purchases:** none


### NCAAI

[App page](https://appshunter.io/ios/app/ncaai/id1619580366)

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

**In-app purchases:** none


## Frequently asked questions

### Is 浙江CA互认 free?

浙江CA互认 is free to download, with no in-app purchases.

### Is NCAAI free?

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

### Do 浙江CA互认 or NCAAI have ads?

Neither 浙江CA互认 nor NCAAI shows ads.

### Which is updated more often, 浙江CA互认 or NCAAI?

浙江CA互认 ships an update every 7 months, and NCAAI monthly. Most recently, 浙江CA互认 was updated on September 9, 2026 and NCAAI on July 28, 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.*