# 微知库教师版 vs 化院e家

The clearest difference is iOS requirement: 微知库教师版 at 11.0 against 化院e家's 13. 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.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 17, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | 微知库教师版 | 化院e家 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 80 MB | 240 MB |
| Requires iOS | **11.0** | 13 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [领航未来(北京)科技有限公司](https://appshunter.io/developer/1009286640) | [内蒙古化工职业学院](https://appshunter.io/developer/1894797361) |

## What reviewers say

### 微知库教师版

[App page](https://appshunter.io/ios/app/id1471076437)

**Features:** macOS Compatibility

**In-app purchases:** none


### 化院e家

[App page](https://appshunter.io/ios/app/e/id6762599681)

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

**In-app purchases:** none


## Frequently asked questions

### Is 微知库教师版 free?

微知库教师版 is free to download, with no in-app purchases.

### Is 化院e家 free?

化院e家 is free to download, with no in-app purchases.

### Do 微知库教师版 or 化院e家 have ads?

Neither 微知库教师版 nor 化院e家 shows ads.

### Which is updated more often, 微知库教师版 or 化院e家?

微知库教师版 ships an update every 2 months, and 化院e家 every 2 months. Most recently, 微知库教师版 was updated on September 17, 2026 and 化院e家 on September 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.*