# Citizen Sea vs FishComp

The clearest difference is update cadence: Citizen Sea at every 9 days against FishComp's every 3 weeks. FishComp's advantage is iOS requirement (15.1 vs 17.6). 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.

Citizen Sea ships an update every 9 days, FishComp every 3 weeks. Both last shipped on September 8, 2026.

## The numbers

| Metric | Citizen Sea | FishComp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/citizen-sea/id6473001342/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Free | — |
| Size | 50 MB | 39 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [HUB Ocean](https://appshunter.io/developer/1718190623) | [Simen Vikdal](https://appshunter.io/developer/1864180071) |

## What reviewers say

### Citizen Sea

[App page](https://appshunter.io/ios/app/citizen-sea/id6473001342)

Contribute to ocean research by documenting marine life and environmental observations. Upload photos and data to a central platform for experts to analyze and support conservation efforts.

**Highlights:** Photo and video capture, Data upload and sharing, Categorization of observations, Location tagging, Expert collaboration, Ocean data platform integration

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

**In-app purchases:** none


### FishComp

[App page](https://appshunter.io/ios/app/fishcomp/id6757008620)

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

**In-app purchases:** none


## Frequently asked questions

### Is Citizen Sea free?

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

### Is FishComp free?

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

### Do Citizen Sea or FishComp have ads?

Neither Citizen Sea nor FishComp shows ads.

### Which is updated more often, Citizen Sea or FishComp?

Citizen Sea ships an update every 9 days, and FishComp every 3 weeks. Most recently, Citizen Sea was updated on September 8, 2026 and FishComp on September 8, 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.*