# Nautilus GPS vs eOceans

The clearest difference is rating: eOceans at 4.2 against Nautilus GPS's 1.9. eOceans also leads on update cadence (weekly vs every 12 months). Nautilus GPS's advantage is monetization model (free vs ad-supported) and iOS requirement (10.0 vs 18.0). On price, ratings volume, 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.

eOceans holds the better App Store score, 4.2 against 1.9. Both are backed by a comparable volume of ratings — 12 and 5 respectively.

Nautilus GPS ships an update every 12 months, eOceans weekly. The most recent releases landed on October 1, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Nautilus GPS | eOceans |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.9 (12 ratings)](https://appshunter.io/ios/app/nautilus-gps/id1176272486/reviews) | **[4.2 (5 ratings)](https://appshunter.io/ios/app/eoceans/id1495841229/reviews)** |
| Number of ratings | **12** | 5 |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Weekly** |
| Monetization | **Free** | Ad-supported |
| Size | 14 MB | 79 MB |
| Requires iOS | **10.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Icarus Aviation Ltd](https://appshunter.io/developer/1176272485) | [eOceans Research and Consulting Inc.](https://appshunter.io/developer/1495841228) |

## What reviewers say

### Nautilus GPS

[App page](https://appshunter.io/ios/app/nautilus-gps/id1176272486)

This utility app uses your iPhone's camera flash to program a unique MMSI number into a compatible marine rescue GPS device. This allows the device to send Man Overboard and emergency distress signals via AIS and DSC.

**Highlights:** Program MMSI numbers, Utilizes iPhone camera flash, Sends Man Overboard messages, Sends emergency distress signals, AIS and DSC signal transmission, Selectable operating modes (AIS, DSC, both)

**Features:** macOS Compatibility

**In-app purchases:** none


### eOceans

[App page](https://appshunter.io/ios/app/eoceans/id1495841229)

Manage environmental projects from anywhere with this all-in-one app. Collect standardized data in the field, collaborate with teams, and transform observations into instant insights without needing spreadsheets or coding skills. Scale your initiatives smarter and faster.

**Highlights:** Field data collection with GPS and timestamp, Standardized data logging for biodiversity, pollution, and more, Real-time maps, time series, and trend analysis, Secure team collaboration and data sharing, Project management without coding or GIS skills, Integration with global conservation priorities

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

**In-app purchases:** none


## Frequently asked questions

### Is Nautilus GPS free?

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

### Is eOceans free?

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

### Which has better reviews, Nautilus GPS or eOceans?

eOceans is rated higher. Nautilus GPS averages 1.9 out of 5 from 12 ratings, while eOceans averages 4.2 from 5 ratings.

### Do Nautilus GPS or eOceans have ads?

Neither Nautilus GPS nor eOceans shows ads.

### Which is updated more often, Nautilus GPS or eOceans?

Nautilus GPS ships an update every 12 months, and eOceans weekly. Most recently, Nautilus GPS was updated on October 1, 2026 and eOceans on October 4, 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.*