# Keloray Pro vs Dipper水族系统

The clearest difference is update cadence: Keloray Pro at every 3 weeks against Dipper水族系统's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Keloray Pro ships an update every 3 weeks, Dipper水族系统 every 2 months. The most recent releases landed on August 26, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Keloray Pro | Dipper水族系统 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 57 MB | 36 MB |
| Requires iOS | **12.4** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [志强 王](https://appshunter.io/developer/1080996774) | [丽辉 王](https://appshunter.io/developer/1629156920) |

## What reviewers say

### Keloray Pro

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Dipper水族系统

[App page](https://appshunter.io/ios/app/dipper/id6670388006)

**In-app purchases:** none


## Frequently asked questions

### Is Keloray Pro free?

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

### Is Dipper水族系统 free?

Dipper水族系统 is free to download, with no in-app purchases.

### Do Keloray Pro or Dipper水族系统 have ads?

Neither Keloray Pro nor Dipper水族系统 shows ads.

### Which is updated more often, Keloray Pro or Dipper水族系统?

Keloray Pro ships an update every 3 weeks, and Dipper水族系统 every 2 months. Most recently, Keloray Pro was updated on August 26, 2026 and Dipper水族系统 on September 13, 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.*