# Keloray Pro vs Aquarium Master

The clearest difference is iOS requirement: Keloray Pro at 12.4 against Aquarium Master's 15.6. On price, update cadence, ads and in-app purchases 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, Aquarium Master every 10 days. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Keloray Pro | Aquarium Master |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Size | 57 MB | 47 MB |
| Requires iOS | **12.4** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [志强 王](https://appshunter.io/developer/1080996774) | [雨 梁](https://appshunter.io/developer/1218726051) |

## What reviewers say

### Keloray Pro

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Aquarium Master

[App page](https://appshunter.io/ios/app/aquarium-master/id6723864411)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Keloray Pro free?

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

### Is Aquarium Master free?

Aquarium Master is free to download, with no in-app purchases.

### Do Keloray Pro or Aquarium Master have ads?

Neither Keloray Pro nor Aquarium Master shows ads.

### Which is updated more often, Keloray Pro or Aquarium Master?

Keloray Pro ships an update every 3 weeks, and Aquarium Master every 10 days. Most recently, Keloray Pro was updated on November 3, 2026 and Aquarium Master on October 27, 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.*