# 流水鱼 vs Tide Pro

The clearest difference is in-app purchases: 流水鱼 at none against Tide Pro's 2. 流水鱼 also leads on ads (none vs shown). Tide Pro's advantage is update cadence (every 2 months vs every 7 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Tide Pro sells 2 one-off in-app purchases. 流水鱼 asks for nothing beyond the download.

流水鱼 ships an update every 7 months, Tide Pro every 2 months. The most recent releases landed on October 11, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 流水鱼 | Tide Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/tide-pro/id1528292517/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 37.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 16 MB | 121 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [静军 杨](https://appshunter.io/developer/1014210741) | [娜 金](https://appshunter.io/developer/1523130771) |

## What reviewers say

### 流水鱼

[App page](https://appshunter.io/ios/app/id1192968213)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is 流水鱼 free?

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

### Is Tide Pro free?

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

### Do 流水鱼 or Tide Pro have ads?

Tide Pro shows ads; 流水鱼 does not.

### Which is updated more often, 流水鱼 or Tide Pro?

流水鱼 ships an update every 7 months, and Tide Pro every 2 months. Most recently, 流水鱼 was updated on October 11, 2026 and Tide Pro on October 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.*