# Tide Pro vs Tide Chart Master

The clearest difference is rating: Tide Pro at 5.0 against Tide Chart Master's 4.4. Tide Pro also leads on monetization model (free with in-app purchases vs subscription) and update cadence (every 2 months vs every 4 months). Tide Chart Master's advantage is ads (none vs shown). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. Tide Pro sells 2 one-off in-app purchases and Tide Chart Master sells 8 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Tide Pro holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 3 and 7 respectively.

Tide Pro ships an update every 2 months, Tide Chart Master every 4 months. The most recent releases landed on October 6, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Tide Pro | Tide Chart Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/tide-pro/id1528292517/reviews)** | [4.4 (7 ratings)](https://appshunter.io/ios/app/tide-chart-master/id6467185147/reviews) |
| Number of ratings | 3 | **7** |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 121 MB | 36 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [娜 金](https://appshunter.io/developer/1523130771) | [苗 何](https://appshunter.io/developer/1814015097) |

## What reviewers say

### Tide Pro

[App page](https://appshunter.io/ios/app/tide-pro/id1528292517)

This app provides high-precision forecasts for ocean weather, including astronomical tides, storm surges, and merged ocean currents. It offers detailed data on wave conditions, ocean currents at various depths, and marine bio-chemistry. Users can also access seabed elevation and field water/soil temperatures.

**Highlights:** Astronomical tide and currents forecast, 6-Day storm surge forecast, Merged ocean-currents approach, Ocean wave forecast, Ocean currents forecast, Ocean bio-chemistry forecast, Seabed elevation data

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month VIP | $14.99 | one-time |
| 1 Year VIP | $49.99 | one-time |


### 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 Tide Pro free?

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

### Is Tide Chart Master free?

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

### Which has better reviews, Tide Pro or Tide Chart Master?

Tide Pro is rated higher. Tide Pro averages 5.0 out of 5 from 3 ratings, while Tide Chart Master averages 4.4 from 7 ratings.

### Do Tide Pro or Tide Chart Master have ads?

Tide Pro shows ads; Tide Chart Master does not.

### Which is updated more often, Tide Pro or Tide Chart Master?

Tide Pro ships an update every 2 months, and Tide Chart Master every 4 months. Most recently, Tide Pro was updated on October 6, 2026 and Tide Chart Master on September 24, 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.*