# 知乎 vs 次元岛

The clearest difference is in-app purchases: 次元岛 at none against 知乎's 17. 次元岛 also leads on ads (none vs shown) and iOS requirement (11.0 vs 13.0). 知乎's advantage is rating (4.5 vs 4.0) and ratings volume (26K vs 2). On price and device support there is nothing between them.

Both are free to download. 知乎 sells 13 in-app purchases, starting at $2.99 per month. 次元岛 asks for nothing beyond the download.

知乎 holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: 知乎 has 26K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 16% of 知乎's written reviews are positive against 0% of 次元岛's.

知乎 ships an update weekly, 次元岛 every 3 weeks. The most recent releases landed on October 23, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 知乎 | 次元岛 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (26K ratings)](https://appshunter.io/ios/app/id432274380/reviews)** | [4.0 (2 ratings)](https://appshunter.io/ios/app/cosplay/id1112866571/reviews) |
| Number of ratings | **26K** | 2 |
| Positive reviews | **16.1% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | — | Free |
| Best chart rank | **#145** | — |
| Size | 458 MB | 32 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Beijing Zhizhetianxia Technology Co., Ltd.](https://appshunter.io/developer/432274383) | [jubo xu](https://appshunter.io/developer/937130885) |

## What reviewers say

### 知乎

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

**Currently charting:** #145 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 (13)**

| 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 |
| 超级盐选会员月卡（1 个月） | $3.99 | 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 |
| 盐选会员年卡(1 年) | $29.99 | per year |
| 6 个知乎币 | $0.99 | one-time |
| 12 个知乎币 | $1.99 | one-time |
| 盐选会员月卡 | $3.99 | one-time |
| 68 个知乎币 | $9.99 | one-time |
| 盐选会员季卡 | $9.99 | one-time |
| 盐选会员年卡 | $14.99 | 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


### 次元岛

[App page](https://appshunter.io/ios/app/cosplay/id1112866571)

A dedicated community for cosplay enthusiasts to share their work, connect with fellow cosplayers, and discover local talent. Users can upload photo albums, comment on creations, and post daily updates to follow others.

**Highlights:** Submit cosplay photo albums, Comment on user creations, Post daily updates, Follow other cosplayers, Discover local cosplayers

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 知乎 free?

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

### Is 次元岛 free?

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

### Which has better reviews, 知乎 or 次元岛?

知乎 is rated higher. 知乎 averages 4.5 out of 5 from 26K ratings, while 次元岛 averages 4.0 from 2 ratings.

### Do 知乎 or 次元岛 have ads?

知乎 shows ads; 次元岛 does not.

### Which is updated more often, 知乎 or 次元岛?

知乎 ships an update weekly, and 次元岛 every 3 weeks. Most recently, 知乎 was updated on October 23, 2026 and 次元岛 on October 12, 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.*