# 知乎 vs CNU

The clearest difference is review sentiment: CNU at 73% against 知乎's 16%. CNU also leads on in-app purchases (none vs 10) and ads (none vs shown). 知乎's advantage is price (Free vs $3.99) and rating (4.5 vs 3.8). On update cadence, chart position and device support there is nothing between them.

知乎 is free to download; CNU costs $3.99 up front. 知乎 sells 8 in-app purchases, starting at $2.99 per month. CNU asks for nothing beyond the download.

知乎 holds the better App Store score, 4.5 against 3.8. That said, the two scores are not equally well evidenced: 知乎 has 26K ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 16% of 知乎's written reviews are positive against 73% of CNU's, so the app with the better star average is not the one people write more warmly about.

知乎 ships an update weekly, CNU every 9 days. The most recent releases landed on November 7, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | 知乎 | CNU |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.5 (26K ratings)](https://appshunter.io/ios/app/id432274380/reviews)** | [3.8 (5 ratings)](https://appshunter.io/ios/app/cnu/id1080235640/reviews) |
| Number of ratings | **26K** | 5 |
| Positive reviews | 15.9% of reviews | **72.7% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | — | Paid |
| Best chart rank | #144 | **#107** |
| Size | 463 MB | 62 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Beijing Zhizhetianxia Technology Co., Ltd.](https://appshunter.io/developer/432274383) | [淮 宋](https://appshunter.io/developer/910042539) |

## What reviewers say

### 知乎

[App page](https://appshunter.io/ios/app/id432274380)

**Currently charting:** #144 Top Grossing · Social Networking (US App Store)

Discover a high-quality question and answer community with original videos. Create, share, and explore content seamlessly with advanced AI search capabilities. Join now to engage in professional discussions and interactive exchanges.	Send feedback or inquiries to app@zhihu.com.

**Features:** Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 盐选会员月卡(1 个月) | $2.99 | per month |
| 盐选会员月卡(1 个月) | $2.99 | per month |
| 盐选会员连续月卡（1 个月） | $2.99 | per month |
| 盐选会员季卡(3 个月) | $7.99 | per 3 months |
| 盐选会员连续季卡（3 个月） | $7.99 | per 3 months |
| 6 个知乎币 | $0.99 | one-time |
| 盐选会员月卡 | $3.99 | one-time |
| 68 个知乎币 | $9.99 | one-time |

**What reviewers like**

- 🌟 Useful knowledge sharing platform
- 💡 Interesting content and ideas
- 📚 Ability to learn new things

**What reviewers complain about**

- 🚫 Strict censorship and content control
- 🤖 Biased and misleading content
- 🤑 Excessive ads and monetization
- 🔒 Privacy concerns and data collection
- 🚧 Poor user experience and app performance

**Reported bugs**

- Frequent app crashes and freezes
- Inability to unsubscribe from paid features

**Requested features**

- Improved content moderation and fairness
- Better user privacy controls
- Optimized app performance and stability


### CNU

[App page](https://appshunter.io/ios/app/cnu/id1080235640)

**Currently charting:** #107 Top Paid · Social Networking (US App Store)

This platform connects top visual artists to share and promote excellent visual culture. It aims to elevate public aesthetic vision through community engagement.

**Highlights:** Top-tier visual art community, Platform for visual artists, Promotes visual culture, Expands aesthetic vision, High standards and quality

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

**In-app purchases:** none


## Frequently asked questions

### Is 知乎 free?

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

### Is CNU free?

CNU costs $3.99, with no in-app purchases.

### Which has better reviews, 知乎 or CNU?

知乎 is rated higher. 知乎 averages 4.5 out of 5 from 26K ratings, while CNU averages 3.8 from 5 ratings.

### Do 知乎 or CNU have ads?

知乎 shows ads; CNU does not.

### Which is updated more often, 知乎 or CNU?

知乎 ships an update weekly, and CNU every 9 days. Most recently, 知乎 was updated on November 7, 2026 and CNU on November 6, 2026.

### Which is more popular, 知乎 or CNU?

知乎 currently peaks at #144 in the App Store charts, and CNU at #107. Chart position reflects recent download velocity rather than total install base.

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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.*