# Fish master aqaua vs ReefAI3

The clearest difference is price: Fish master aqaua at Free against ReefAI3's $1.99. Fish master aqaua also leads on iOS requirement (12.0 vs 15.1). ReefAI3's advantage is update cadence (every 2 days vs weekly). On ads, in-app purchases and device support there is nothing between them.

Fish master aqaua is free to download; ReefAI3 costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Fish master aqaua ships an update weekly, ReefAI3 every 2 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Fish master aqaua | ReefAI3 |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 2 days** |
| Size | 39 MB | 30 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [师松 梁](https://appshunter.io/developer/922518056) | [Austin Lamitina](https://appshunter.io/developer/1884142429) |

## What reviewers say

### Fish master aqaua

[App page](https://appshunter.io/ios/app/fish-master-aqaua/id6448865843)

**Features:** macOS Compatibility

**In-app purchases:** none


### ReefAI3

[App page](https://appshunter.io/ios/app/reefai3/id6764714629)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fish master aqaua free?

Fish master aqaua is free to download, with no in-app purchases.

### Is ReefAI3 free?

ReefAI3 costs $1.99, with no in-app purchases.

### Do Fish master aqaua or ReefAI3 have ads?

Neither Fish master aqaua nor ReefAI3 shows ads.

### Which is updated more often, Fish master aqaua or ReefAI3?

Fish master aqaua ships an update weekly, and ReefAI3 every 2 days. Most recently, Fish master aqaua was updated on October 27, 2026 and ReefAI3 on October 25, 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.*