# 校查查 vs YSIoT

The clearest difference is iOS requirement: YSIoT at 13.0 against 校查查's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

校查查 ships an update every 9 days, YSIoT every 11 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 校查查 | YSIoT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6447762496/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 11 days |
| Monetization | Free | — |
| Size | 5 MB | 68 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [申生 金](https://appshunter.io/developer/1527691180) | [寿光云尚网络科技有限公司](https://appshunter.io/developer/1830626413) |

## What reviewers say

### 校查查

[App page](https://appshunter.io/ios/app/id6447762496)

This app provides a comprehensive tool for searching and exploring universities across China. It includes information on regular universities, key construction universities like 'Double First-Class', '985', '211', and 'Strong Foundation Plan', as well as institutions in Hong Kong, Macau, and Taiwan. Users can also view university rankings and browse official websites.

**Highlights:** University search, Key construction university information, Hong Kong, Macau, Taiwan university listings, University rankings, Official website browsing

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

**In-app purchases:** none


### YSIoT

[App page](https://appshunter.io/ios/app/ysiot/id6749471409)

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

**In-app purchases:** none


## Frequently asked questions

### Is 校查查 free?

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

### Is YSIoT free?

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

### Do 校查查 or YSIoT have ads?

Neither 校查查 nor YSIoT shows ads.

### Which is updated more often, 校查查 or YSIoT?

校查查 ships an update every 9 days, and YSIoT every 11 days. Most recently, 校查查 was updated on November 3, 2026 and YSIoT on October 30, 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.*