# 海洋信息服务 vs ducafecat

The clearest difference is update cadence: 海洋信息服务 at every 3 weeks against ducafecat's every 2 months. 海洋信息服务 also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

海洋信息服务 ships an update every 3 weeks, ducafecat every 2 months. Both last shipped on October 27, 2026.

## The numbers

| Metric | 海洋信息服务 | ducafecat |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 82 MB | 27 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [上海望海大数据信息有限公司](https://appshunter.io/developer/1514736393) | [峙巍 陶](https://appshunter.io/developer/592944760) |

## What reviewers say

### 海洋信息服务

[App page](https://appshunter.io/ios/app/id1670552703)

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

**In-app purchases:** none


### ducafecat

[App page](https://appshunter.io/ios/app/ducafecat/id6444367477)

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

**In-app purchases:** none


## Frequently asked questions

### Is 海洋信息服务 free?

海洋信息服务 is free to download, with no in-app purchases.

### Is ducafecat free?

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

### Do 海洋信息服务 or ducafecat have ads?

Neither 海洋信息服务 nor ducafecat shows ads.

### Which is updated more often, 海洋信息服务 or ducafecat?

海洋信息服务 ships an update every 3 weeks, and ducafecat every 2 months. Most recently, 海洋信息服务 was updated on October 27, 2026 and ducafecat on October 27, 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.*