# Citizen Sea — Be our eyes on the ocean

> Citizen science app for ocean observation and research data contribution. (iPhone/iPad app by HUB Ocean.)

- Source: https://appshunter.io/ios/app/citizen-sea/id6473001342 (this page in markdown: same URL + `.md`)
- Developer: [HUB Ocean](https://appshunter.io/developer/1718190623)
- Category: Utilities
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 17.6 · 50 MB
- Languages: American English
- Released: 2024-01-10
- Data updated: 2026-07-28
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/citizen-sea/id6473001342/reviews.md

## What is Citizen Sea?

Take pictures / record observations you see in the ocean and share these with experts to support research and collaboration to heal the ocean.

The Citizen Sea app allows anyone, anywhere on the ocean or shoreline, to take a photo using their phone or upload a photo from their camera roll. By choosing from a list of categories, you can label and upload your photos of the ocean along with their category, date, time and location of where they were taken and share them with HUB Ocean. HUB Ocean will then store it in their Ocean Data Platform and share it with the experts.  

HUB Ocean is a non-profit foundation that provides a platform, solutions and tools to access, visualize and analyze ocean data from diverse sources. They work with partners from science, tech and governments to create impact and drive sustainable ocean management worldwide.

## Key features

- Photo and video capture
- Data upload and sharing
- Categorization of observations
- Location tagging
- Expert collaboration
- Ocean data platform integration


## Frequently asked questions about Citizen Sea

### What is Citizen Sea used for?

Citizen Sea allows users to document ocean observations, such as marine life or environmental changes, by taking photos or uploading existing ones. This data is then shared with experts to support ocean research and conservation efforts.

### Is Citizen Sea free to use?

Yes, Citizen Sea is completely free to download and use. There are no in-app purchases or advertisements within the application.

### What devices does Citizen Sea support?

Citizen Sea is available for both iPhone and iPad devices, allowing a wide range of users to participate in ocean data collection.

### How often is Citizen Sea updated?

The app was last updated on June 4, 2025, with version 1.0.47. This indicates active development and regular updates to improve functionality and reliability.

### What is the age rating for Citizen Sea?

Citizen Sea has an age rating of 4+, making it suitable for users of all ages to contribute to ocean research.

### How does Citizen Sea contribute to ocean research?

By collecting and uploading observations, users provide valuable data to HUB Ocean's Ocean Data Platform. This data is then analyzed by experts to drive sustainable ocean management and conservation initiatives worldwide.

### Can I use Citizen Sea offline?

The provided description does not specify offline functionality. However, data upload and sharing typically require an internet connection.

### What kind of observations can I record with Citizen Sea?

You can record various ocean observations, including photos of marine life, environmental changes, or any other relevant visual data from the ocean or shoreline. These are then categorized for expert analysis.

## Version history (last 5 releases)

### 1.1.1 — 2026-07-27

- Improved stability: fixed crashes that could occur during data upload and when showing in-app messages.                                                                          
- Smoother settings screen: fixed a navigation issue and a layout overflow at the bottom of the page.                                                                              
- The re-upload button is now disabled when there's nothing pending to upload.                                                                                                     
- Added missing translations for a more consistent experience.

### 1.0.47 — 2025-06-04

- Improved functionality for reporting 
- Updated design 
- Minor bug fixes

### 1.0.39 — 2024-04-29

General fixes and improvements.

### 1.0.37 — 2024-04-26

General fixes and improvements.

### 1.0.36 — 2024-04-17

Capture Azimuth angle (camera direction) while taking photos!

## Apps similar to Citizen Sea

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Stinto](https://appshunter.io/ios/app/stinto/id1441964443) | 4.0 (4) | Free | Utilities |
| [Tanker - The Sounding App](https://appshunter.io/ios/app/tanker-the-sounding-app/id1442173028) | 5.0 (1) | Free | Utilities |
| [Oil Spill Calculator](https://appshunter.io/ios/app/oil-spill-calculator/id943047913) | — | Free | Utilities |
| [Benchmark Week 2025](https://appshunter.io/ios/app/benchmark-week-2025/id6754333628) | — | Free | Utilities |
| [Symbols of Cars and Meanings](https://appshunter.io/ios/app/symbols-of-cars-and-meanings/id6738742092) | — | Free | Utilities |
| [Rent Hav](https://appshunter.io/ios/app/rent-hav/id1590134405) | — | Free | Utilities |

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-28.*