# 知识星球 vs BabelBird Cloud Disk

The clearest difference is update cadence: 知识星球 at every 2 weeks against BabelBird Cloud Disk's every 6 weeks. BabelBird Cloud Disk's advantage is iOS requirement (11.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 知识星球 sells 14 one-off in-app purchases and BabelBird Cloud Disk sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

知识星球 ships an update every 2 weeks, BabelBird Cloud Disk every 6 weeks. The most recent releases landed on September 22, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | 知识星球 | BabelBird Cloud Disk |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.3K ratings)](https://appshunter.io/ios/app/id1039749242/reviews)** | — |
| Number of ratings | **1.3K** | — |
| Positive reviews | 48.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 148 MB | 220 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [ShenZhen DaChengTianXia Information Technology Co., LTD](https://appshunter.io/developer/520764408) | [Molamola Inc.](https://appshunter.io/developer/594382677) |

## What reviewers say

### 知识星球

[App page](https://appshunter.io/ios/app/id1039749242)

This app enables users to create and manage private online communities for sharing content like articles, photos, and files. It facilitates easy member invitations and provides robust search functionality within groups. Ideal for fostering focused discussions and knowledge sharing among dedicated followers.

**Highlights:** Create topic-based groups, Invite members via quick link, Post articles, photos, files, URLs, Comment on posts, Search group content by keyword

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

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10个星球币 | $0.99 | one-time |
| 6 个星球币 | $0.99 | one-time |
| 20个星球币 | $2.99 | one-time |
| 50个星球币 | $6.99 | one-time |
| 68 个星球币 | $9.99 | one-time |
| 100个星球币 | $14.99 | one-time |
| 168个星球币 | $24.99 | one-time |
| 188 个星球币 | $29.99 | one-time |
| 200个星球币 | $29.99 | one-time |
| 368 个星球币 | $49.99 | one-time |
| 400个星球币 | $59.99 | one-time |
| 500个星球币 | $69.99 | one-time |
| 518 个星球币 | $69.99 | one-time |
| 800个星球币 | $99.99 | one-time |

**What reviewers like**

- 🌟 Informative content
- 💡 Interesting concept
- 👍 Useful for content creators

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- 🔒 Lack of security and user protection
- 💰 Overpriced with poor value
- 👥 Difficult to use and navigate
- 🚫 Censorship and content restrictions

**Reported bugs**

- Unable to join or access certain content
- Push notifications not working as expected
- Audio/video playback issues
- Login and registration problems
- Compatibility issues on older devices

**Requested features**

- Add mobile number login option
- Improve search and discovery of content
- Implement refund and customer support system
- Provide dark mode for better readability
- Allow users to block/mute unwanted content


### BabelBird Cloud Disk

[App page](https://appshunter.io/ios/app/babelbird-cloud-disk/id1041378667)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100G | $30.99 | one-time |
| 升级至专业版 | $399.99 | one-time |
| 专业版续费 | $399.99 | one-time |


## Frequently asked questions

### Is 知识星球 free?

知识星球 is free to download, with in-app purchases available.

### Is BabelBird Cloud Disk free?

BabelBird Cloud Disk is free to download, with in-app purchases available.

### Do 知识星球 or BabelBird Cloud Disk have ads?

Neither 知识星球 nor BabelBird Cloud Disk shows ads.

### Which is updated more often, 知识星球 or BabelBird Cloud Disk?

知识星球 ships an update every 2 weeks, and BabelBird Cloud Disk every 6 weeks. Most recently, 知识星球 was updated on September 22, 2026 and BabelBird Cloud Disk on September 7, 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.*