# L'Observatoire des Odeurs vs Activ'Projet

The clearest difference is iOS requirement: Activ'Projet at 11.0 against L'Observatoire des Odeurs's 15.6. 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.

L'Observatoire des Odeurs ships an update fortnightly, Activ'Projet every 11 days. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | L'Observatoire des Odeurs | Activ'Projet |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 11 days** |
| Size | 56 MB | 25 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 9+ | 17+ |
| Developer | [Keyclic](https://appshunter.io/developer/938074975) | [NA3D](https://appshunter.io/developer/1528981395) |

## What reviewers say

### L'Observatoire des Odeurs

[App page](https://appshunter.io/ios/app/lobservatoire-des-odeurs/id1446550311)

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

**In-app purchases:** none


### Activ'Projet

[App page](https://appshunter.io/ios/app/activprojet/id6474488115)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is L'Observatoire des Odeurs free?

L'Observatoire des Odeurs is free to download, with no in-app purchases.

### Is Activ'Projet free?

Activ'Projet is free to download, with no in-app purchases.

### Do L'Observatoire des Odeurs or Activ'Projet have ads?

Neither L'Observatoire des Odeurs nor Activ'Projet shows ads.

### Which is updated more often, L'Observatoire des Odeurs or Activ'Projet?

L'Observatoire des Odeurs ships an update fortnightly, and Activ'Projet every 11 days. Most recently, L'Observatoire des Odeurs was updated on October 29, 2026 and Activ'Projet on October 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.*