# 知室书院 vs 福训

The clearest difference is in-app purchases: 福训 at none against 知室书院's 6. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 知室书院 sells 6 one-off in-app purchases. 福训 asks for nothing beyond the download.

知室书院 ships an update monthly, 福训 every 2 months. The most recent releases landed on October 19, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | 知室书院 | 福训 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Size | 241 MB | 41 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Shanghai Zhidaozhishi Digitaltechnology Co., Ltd.](https://appshunter.io/developer/1434287057) | [WGM](https://appshunter.io/developer/1764260678) |

## What reviewers say

### 知室书院

[App page](https://appshunter.io/ios/app/id1580178899)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 18知果礼包 | $2.99 | one-time |
| 50知果礼包 | $7.99 | one-time |
| 98知果礼包 | $14.99 | one-time |
| 198知果礼包 | $29.99 | one-time |
| 588知果礼包 | $89.99 | one-time |
| 998知果礼包 | $149.99 | one-time |


### 福训

[App page](https://appshunter.io/ios/app/id6479649919)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 知室书院 free?

知室书院 is free to download, with in-app purchases available.

### Is 福训 free?

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

### Do 知室书院 or 福训 have ads?

Neither 知室书院 nor 福训 shows ads.

### Which is updated more often, 知室书院 or 福训?

知室书院 ships an update monthly, and 福训 every 2 months. Most recently, 知室书院 was updated on October 19, 2026 and 福训 on October 17, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*