# ObsEnMer vs OpenBarres

The clearest difference is review sentiment: ObsEnMer at 67% against OpenBarres's 8%. On price, update cadence, 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.

ObsEnMer ships an update every 4 months, OpenBarres every 3 months. The most recent releases landed on October 4, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | ObsEnMer | OpenBarres |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/obsenmer/id1162065009/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **66.7% of reviews** | 8.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 185 MB | 44 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Altitude Cherbourg](https://appshunter.io/developer/512464175) | [Agence Nationale des Frequences](https://appshunter.io/developer/694622689) |

## What reviewers say

### ObsEnMer

[App page](https://appshunter.io/ios/app/obsenmer/id1162065009)

Report marine animal sightings with this app. It's designed for boaters, professionals, and associations to contribute to citizen science programs. Help researchers understand marine life and climate change impacts.

**Highlights:** Report marine animal observations, Two involvement levels for boaters, Expert level for trained contributors, Species identification guide, Observation history, Species identification quizzes, Share observations on social media

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

**In-app purchases:** none


### OpenBarres

[App page](https://appshunter.io/ios/app/openbarres/id1362737321)

Visualize nearby telecom sites, track 5G network deployment in France, and access information on mobile phone radio wave exposure. Get details on operators, network generations, and specific frequency bands used.

**Highlights:** Visualize nearby telecom sites, View operators and installed systems, Track 5G network deployment, Access mobile phone radio wave exposure data, Check electric field levels, Filter by operator and network generation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ObsEnMer free?

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

### Is OpenBarres free?

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

### Do ObsEnMer or OpenBarres have ads?

Neither ObsEnMer nor OpenBarres shows ads.

### Which is updated more often, ObsEnMer or OpenBarres?

ObsEnMer ships an update every 4 months, and OpenBarres every 3 months. Most recently, ObsEnMer was updated on October 4, 2026 and OpenBarres on September 27, 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.*