# 库百汇 vs Seagull IM

The clearest difference is in-app purchases: 库百汇 at none against Seagull IM's 13. 库百汇 also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). Seagull IM's advantage is update cadence (every 2 weeks vs every 3 months). On price and device support there is nothing between them.

Both are free to download. Seagull IM sells 13 one-off in-app purchases. 库百汇 asks for nothing beyond the download.

库百汇 ships an update every 3 months, Seagull IM every 2 weeks. The most recent releases landed on September 9, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | 库百汇 | Seagull IM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.6 (46 ratings)](https://appshunter.io/ios/app/seagull-im/id1584062834/reviews)** |
| Number of ratings | — | **46** |
| Positive reviews | — | 86.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 113 MB | 234 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Shenzhen Kubaihui Trading Co., Ltd.](https://appshunter.io/developer/1253351933) | [Chengdu zhengdu Technology Co., Ltd](https://appshunter.io/developer/1504601973) |

## What reviewers say

### 库百汇

[App page](https://appshunter.io/ios/app/501b2b/id1253351934)

**Features:** macOS Compatibility

**In-app purchases:** none


### Seagull IM

[App page](https://appshunter.io/ios/app/seagull-im/id1584062834)

This app offers secure, private, and efficient instant messaging with end-to-end encryption. Communicate via text, voice, or video calls, and enjoy features like screenshot notifications and bidirectional deletion for enhanced privacy and control.

**Highlights:** End-to-end encryption, Voice and video calls, Screenshot notifications, Bidirectional message deletion, Large group chat management, Application lock

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

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 海鸥1个月靓号服务券 | $2.99 | one-time |
| 海鸥3个月靓号服务券 | $7.99 | one-time |
| 海鸥会员-1个月 | $9.99 | one-time |
| 欧币 | $14.99 | one-time |
| 海鸥6个月靓号服务券 | $14.99 | one-time |
| 欧币 | $29.99 | one-time |
| 海鸥12个月靓号服务券 | $29.99 | one-time |
| 海鸥会员-3个月 | $29.99 | one-time |
| 欧币 | $47.99 | one-time |
| 欧币 | $59.99 | one-time |
| 海鸥 | $69.99 | one-time |
| 海鸥会员-12个月 | $99.99 | one-time |
| 1298元欧币 | $199.99 | one-time |


## Frequently asked questions

### Is 库百汇 free?

库百汇 is free to download, with no in-app purchases.

### Is Seagull IM free?

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

### Do 库百汇 or Seagull IM have ads?

Seagull IM shows ads; 库百汇 does not.

### Which is updated more often, 库百汇 or Seagull IM?

库百汇 ships an update every 3 months, and Seagull IM every 2 weeks. Most recently, 库百汇 was updated on September 9, 2026 and Seagull IM on September 22, 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.*