# 中国海洋预报（专业版） vs 潮汐时间表

The clearest difference is in-app purchases: 中国海洋预报（专业版） at none against 潮汐时间表's 6. 中国海洋预报（专业版） also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 5 weeks). On price and device support there is nothing between them.

Both are free to download. 潮汐时间表 sells 6 in-app purchases, starting at $2.99 per month. 中国海洋预报（专业版） asks for nothing beyond the download.

中国海洋预报（专业版） ships an update every 2 weeks, 潮汐时间表 every 5 weeks. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 中国海洋预报（专业版） | 潮汐时间表 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.8 (12 ratings)](https://appshunter.io/ios/app/id6467822767/reviews)** |
| Number of ratings | — | **12** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 5 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 47 MB | 49 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [National Marine Enviromental Forecasting Center](https://appshunter.io/developer/1532384187) | [Fingertip Jusheng (Taiyuan) Network Technology Co. LTD](https://appshunter.io/developer/1687910061) |

## What reviewers say

### 中国海洋预报（专业版）

[App page](https://appshunter.io/ios/app/id1542158663)

**Features:** macOS Compatibility

**In-app purchases:** none


### 潮汐时间表

[App page](https://appshunter.io/ios/app/id6467822767)

This app provides detailed tidal forecasts, wind and wave predictions, and sunrise/sunset times for coastal activities. It helps users plan fishing trips, beachcombing excursions, and water sports by identifying optimal times and avoiding hazardous conditions.

**Highlights:** 7-day tidal forecasts, Wind and wave predictions, Sunrise and sunset times, Best fishing/beachcombing times, Nearby pier recommendations, Minute-level tide predictions

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $2.99 | per month |
| 季度会员 | $3.99 | per 3 months |
| 年度会员 | $4.99 | per year |
| 月会员 | $9.99 | per month |
| 季会员 | $14.99 | per 3 months |
| 年会员 | $19.99 | per year |


## Frequently asked questions

### Is 中国海洋预报（专业版） free?

中国海洋预报（专业版） is free to download, with no in-app purchases.

### Is 潮汐时间表 free?

潮汐时间表 is free to download, with in-app purchases available.

### Do 中国海洋预报（专业版） or 潮汐时间表 have ads?

潮汐时间表 shows ads; 中国海洋预报（专业版） does not.

### Which is updated more often, 中国海洋预报（专业版） or 潮汐时间表?

中国海洋预报（专业版） ships an update every 2 weeks, and 潮汐时间表 every 5 weeks. Most recently, 中国海洋预报（专业版） was updated on November 7, 2026 and 潮汐时间表 on November 3, 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.*