# 大大學院 vs 孜孜

The clearest difference is review sentiment: 大大學院 at 82% against 孜孜's 11%. 大大學院 also leads on in-app purchases (none vs 4) and update cadence (every 5 weeks vs every 2 months). 孜孜's advantage is iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. 孜孜 sells 4 one-off in-app purchases. 大大學院 asks for nothing beyond the download.

大大學院 ships an update every 5 weeks, 孜孜 every 2 months. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 大大學院 | 孜孜 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id1576288024/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **81.8% of reviews** | 11.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Size | 17 MB | 150 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [大大學院](https://appshunter.io/developer/1477051575) | [NUAZURE Innovative Technology Co., Ltd](https://appshunter.io/developer/381468347) |

## What reviewers say

### 大大學院

[App page](https://appshunter.io/ios/app/id1576288024)

**Features:** macOS Compatibility

**In-app purchases:** none


### 孜孜

[App page](https://appshunter.io/ios/app/id1577302232)

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iGold 430 | $12.99 | one-time |
| iGold 630 | $19.99 | one-time |
| iGold 1230 | $39.99 | one-time |
| iGold 2490 | $79.99 | one-time |


## Frequently asked questions

### Is 大大學院 free?

大大學院 is free to download, with no in-app purchases.

### Is 孜孜 free?

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

### Do 大大學院 or 孜孜 have ads?

Neither 大大學院 nor 孜孜 shows ads.

### Which is updated more often, 大大學院 or 孜孜?

大大學院 ships an update every 5 weeks, and 孜孜 every 2 months. Most recently, 大大學院 was updated on October 13, 2026 and 孜孜 on October 6, 2026.

---

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