# 海水驿站 vs Keloray Pro

The clearest difference is in-app purchases: Keloray Pro at none against 海水驿站's 4. Keloray Pro also leads on ads (none vs shown) and device support (3 vs 1). 海水驿站's advantage is update cadence (weekly vs every 3 weeks). On price there is nothing between them.

Both are free to download. 海水驿站 sells 4 in-app purchases, starting at $28.99 per 6 months. Keloray Pro asks for nothing beyond the download.

海水驿站 ships an update weekly, Keloray Pro every 3 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 海水驿站 | Keloray Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/id922497742/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 52.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 97 MB | 57 MB |
| Requires iOS | 17 | **12.4** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [兆辉 马](https://appshunter.io/developer/667445063) | [志强 王](https://appshunter.io/developer/1080996774) |

## What reviewers say

### 海水驿站

[App page](https://appshunter.io/ios/app/id922497742)

This app helps saltwater aquarium enthusiasts manage their tanks with smart water quality tracking, expert guides, and a community forum. It offers detailed creature databases and task management to simplify aquarium care.

**Highlights:** Smart water quality management, Expert aquarium setup guides, Original saltwater feeding strategies, Saltwater creature database, Community forum for enthusiasts, Task management for aquariums

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 半年会员 | $28.99 | per 6 months |
| 1 year premium member | $29.99 | per year |
| 1 month premium member | $29.99 | per month |
| 打赏站长一杯咖啡 | $4.99 | one-time |


### Keloray Pro

[App page](https://appshunter.io/ios/app/keloray-pro/id6450856671)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 海水驿站 free?

海水驿站 is free to download, with in-app purchases available.

### Is Keloray Pro free?

Keloray Pro is free to download, with no in-app purchases.

### Do 海水驿站 or Keloray Pro have ads?

海水驿站 shows ads; Keloray Pro does not.

### Which is updated more often, 海水驿站 or Keloray Pro?

海水驿站 ships an update weekly, and Keloray Pro every 3 weeks. Most recently, 海水驿站 was updated on November 1, 2026 and Keloray Pro 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.*