# Clés de forêt vs Ois'App

The clearest difference is in-app purchases: Clés de forêt at none against Ois'App's 3. Ois'App's advantage is review sentiment (100% vs 68%). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Ois'App sells 3 in-app purchases, starting at $2.99 per month. Clés de forêt asks for nothing beyond the download.

Clés de forêt ships an update every 8 months, Ois'App every 6 months. The most recent releases landed on November 10, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Clés de forêt | Ois'App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/oisapp-oiseaux-de-france/id6449595708/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 67.9% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 6 months** |
| Monetization | **Free** | Freemium |
| Size | 105 MB | 1.2 GB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Office national des forets](https://appshunter.io/developer/448643917) | [Sunbird Images OHG](https://appshunter.io/developer/1772908503) |

## What reviewers say

### Clés de forêt

[App page](https://appshunter.io/ios/app/cles-de-foret/id448643914)

Learn to easily identify a selection of metropolitan tree and animal species with simplified identification keys. This app is designed to introduce users to recognizing flora and fauna, offering offline access to all features and content once downloaded. Engage in interactive modes like 'Enquête' and quizzes to earn points and unlock hidden content.

**Highlights:** Simplified identification keys, Offline access to content, Interactive 'Enquête' mode, Species list with filtering, Knowledge-testing quizzes, Unlockable secret mode, Progress tracking profile

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

**In-app purchases:** none


### Ois'App

[App page](https://appshunter.io/ios/app/oisapp-oiseaux-de-france/id6449595708)

Identify wild birds in mainland France with this comprehensive guide. It offers detailed information on over 400 species, comparison tools, and offline functionality. Enhance your experience with AI-powered photo and sound recognition, bird songs, and 3D animations through an annual subscription.

**Highlights:** Over 400 bird species identification, Detailed species information, Similar species comparison, Descriptive identification aid, Geolocated observation lists, Offline functionality, AI photo and sound recognition (subscription)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Forfait tout en un abo mensuel | $2.99 | per month |
| Forfait chants d’oiseaux FR | $4.99 | per year |
| Tout en un – abonnement annuel | $22.99 | per year |


## Frequently asked questions

### Is Clés de forêt free?

Clés de forêt is free to download, with no in-app purchases.

### Is Ois'App free?

Ois'App is free to download, with in-app purchases available.

### Do Clés de forêt or Ois'App have ads?

Neither Clés de forêt nor Ois'App shows ads.

### Which is updated more often, Clés de forêt or Ois'App?

Clés de forêt ships an update every 8 months, and Ois'App every 6 months. Most recently, Clés de forêt was updated on November 10, 2026 and Ois'App on November 7, 2026.

---

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