# ObsEnMer vs NaturaList

The clearest difference is in-app purchases: ObsEnMer at none against NaturaList's 3. ObsEnMer also leads on review sentiment (67% vs 32%). NaturaList's advantage is update cadence (every 2 months vs every 4 months) and iOS requirement (12.0 vs 14.0). On price, ads and device support there is nothing between them.

Both are free to download. NaturaList sells 3 in-app purchases, starting at $2.49 per year. ObsEnMer asks for nothing beyond the download.

ObsEnMer ships an update every 4 months, NaturaList every 2 months. The most recent releases landed on October 21, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | ObsEnMer | NaturaList |
| --- | --- | --- |
| 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** | 31.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 185 MB | 39 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Altitude Cherbourg](https://appshunter.io/developer/512464175) | [Biolovision Sàrl](https://appshunter.io/developer/1175280267) |

## 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


### NaturaList

[App page](https://appshunter.io/ios/app/naturalist/id1175280268)

Easily record nature sightings with detailed information and precise GPS locations. Contribute to conservation efforts and science by sharing your observations with a global network of partner databases. View recent sightings in your area and discover rare species.

**Highlights:** Record sightings with GPS, Contribute to nature conservation, View recent sightings nearby, Add photos to sightings, Multilingual interface, Supports many taxonomic groups

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic subscription | $2.49 | per year |
| Follower subscription | $4.49 | per year |
| Big fan subscription | $9.49 | per year |


## Frequently asked questions

### Is ObsEnMer free?

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

### Is NaturaList free?

NaturaList is free to download, with in-app purchases available.

### Do ObsEnMer or NaturaList have ads?

Neither ObsEnMer nor NaturaList shows ads.

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

ObsEnMer ships an update every 4 months, and NaturaList every 2 months. Most recently, ObsEnMer was updated on October 21, 2026 and NaturaList on October 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*