# 潮汐查看助手 vs Tide Chart Master

The clearest difference is in-app purchases: 潮汐查看助手 at none against Tide Chart Master's 8. 潮汐查看助手 also leads on update cadence (every 2 months vs every 4 months). Tide Chart Master's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Tide Chart Master sells 8 in-app purchases, starting at $0.99 per month. 潮汐查看助手 asks for nothing beyond the download.

潮汐查看助手 ships an update every 2 months, Tide Chart Master every 4 months. The most recent releases landed on September 5, 2026 and July 6, 2026 respectively.

## The numbers

| Metric | 潮汐查看助手 | Tide Chart Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (7 ratings)](https://appshunter.io/ios/app/tide-chart-master/id6467185147/reviews)** |
| Number of ratings | — | **7** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | — | Subscription |
| Size | 27 MB | 36 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [佳宝 刘](https://appshunter.io/developer/1673925868) | [苗 何](https://appshunter.io/developer/1814015097) |

## What reviewers say

### 潮汐查看助手

[App page](https://appshunter.io/ios/app/id6450698453)

**Features:** macOS Compatibility

**In-app purchases:** none


### Tide Chart Master

[App page](https://appshunter.io/ios/app/tide-chart-master/id6467185147)

Access global tide charts with intuitive line graphs and 7-day weather forecasts. Includes tools for temperature, humidity, air quality, decibel detection, and a compass for navigation.

**Highlights:** Global tide chart viewing, 7-day weather forecast, Sunrise/sunset times, Temperature and humidity measurement, Air quality and decibel detection, Compass for direction

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 誉贺全球潮汐：订阅月度专业版高级服务 | $0.99 | per month |
| Tide Chart: Weekly Subscription | $0.99 | per 7 days |
| 誉贺全球潮汐：订阅月度高级专业版服务 | $2.99 | per month |
| 誉贺全球潮汐：订阅半年专业版高级服务 | $3.99 | per 6 months |
| Tide Chart: Weekly Subscription | $4.99 | per 7 days |
| 潮汐表：高级权限季度订阅 | $9.99 | per 3 months |
| 誉贺全球潮汐：订阅半年高级专业版服务 | $14.99 | per 6 months |
| Tide Chart: Quarterly Subscription | $24.99 | per 3 months |


## Frequently asked questions

### Is 潮汐查看助手 free?

潮汐查看助手 is free to download, with no in-app purchases.

### Is Tide Chart Master free?

Tide Chart Master is free to download, with in-app purchases available.

### Do 潮汐查看助手 or Tide Chart Master have ads?

潮汐查看助手 shows ads; Tide Chart Master does not.

### Which is updated more often, 潮汐查看助手 or Tide Chart Master?

潮汐查看助手 ships an update every 2 months, and Tide Chart Master every 4 months. Most recently, 潮汐查看助手 was updated on September 5, 2026 and Tide Chart Master on July 6, 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.*