# Seagull IM vs Poswize

The clearest difference is ads: Poswize at none against Seagull IM's shown. Seagull IM's advantage is update cadence (every 2 weeks vs every 6 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Seagull IM sells 13 one-off in-app purchases and Poswize sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Seagull IM ships an update every 2 weeks, Poswize every 6 weeks. The most recent releases landed on October 22, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Seagull IM | Poswize |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (46 ratings)](https://appshunter.io/ios/app/seagull-im/id1584062834/reviews)** | — |
| Number of ratings | **46** | — |
| Positive reviews | 87.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 234 MB | 268 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Chengdu zhengdu Technology Co., Ltd](https://appshunter.io/developer/1504601973) | [SALEH ALSHEHHI](https://appshunter.io/developer/1726415949) |

## What reviewers say

### 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 |


### Poswize

[App page](https://appshunter.io/ios/app/poswize/id6504360394)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Feature Pack | $0.99 | one-time |


## Frequently asked questions

### Is Seagull IM free?

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

### Is Poswize free?

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

### Do Seagull IM or Poswize have ads?

Seagull IM shows ads; Poswize does not.

### Which is updated more often, Seagull IM or Poswize?

Seagull IM ships an update every 2 weeks, and Poswize every 6 weeks. Most recently, Seagull IM was updated on October 22, 2026 and Poswize on October 10, 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.*