# OceanFMS 2.1 vs FishAqua

The clearest difference is update cadence: FishAqua at every 3 days against OceanFMS 2.1's fortnightly. 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.

OceanFMS 2.1 ships an update fortnightly, FishAqua every 3 days. The most recent releases landed on September 28, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | OceanFMS 2.1 | FishAqua |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 3 days** |
| Size | 56 MB | 25 MB |
| Requires iOS | 15.1 | **15** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Probus Software](https://appshunter.io/developer/1781825469) | [Noah Michael Sullivan](https://appshunter.io/developer/6789506747) |

## What reviewers say

### OceanFMS 2.1

[App page](https://appshunter.io/ios/app/oceanfms-21/id6753783551)

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

**In-app purchases:** none


### FishAqua

[App page](https://appshunter.io/ios/app/fishaqua/id6795076216)

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

**In-app purchases:** none


## Frequently asked questions

### Is OceanFMS 2.1 free?

OceanFMS 2.1 is free to download, with no in-app purchases.

### Is FishAqua free?

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

### Do OceanFMS 2.1 or FishAqua have ads?

Neither OceanFMS 2.1 nor FishAqua shows ads.

### Which is updated more often, OceanFMS 2.1 or FishAqua?

OceanFMS 2.1 ships an update fortnightly, and FishAqua every 3 days. Most recently, OceanFMS 2.1 was updated on September 28, 2026 and FishAqua on October 9, 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.*