# Tide Chart Master vs 全国潮汐表

The clearest difference is in-app purchases: 全国潮汐表 at none against Tide Chart Master's 8. Tide Chart Master's advantage is ads (none vs shown). On price, update cadence, 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. 全国潮汐表 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Tide Chart Master | 全国潮汐表 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (8 ratings)](https://appshunter.io/ios/app/tide-chart-master/id6467185147/reviews)** | — |
| Number of ratings | **8** | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | Subscription | — |
| Size | 36 MB | 78 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [苗 何](https://appshunter.io/developer/1814015097) | [hao weiming](https://appshunter.io/developer/1444539190) |

## What reviewers say

### 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 |


### 全国潮汐表

[App page](https://appshunter.io/ios/app/id6502544888)

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

**In-app purchases:** none


## Frequently asked questions

### Is Tide Chart Master free?

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

### Is 全国潮汐表 free?

全国潮汐表 is free to download, with no in-app purchases.

### Do Tide Chart Master or 全国潮汐表 have ads?

全国潮汐表 shows ads; Tide Chart Master does not.

### Which is updated more often, Tide Chart Master or 全国潮汐表?

Tide Chart Master ships an update every 4 months, and 全国潮汐表 every 4 months. Most recently, Tide Chart Master was updated on October 24, 2026 and 全国潮汐表 on October 8, 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.*