# THÉIA vs Le Décodeur

The clearest difference is review sentiment: THÉIA at 100% against Le Décodeur's 14%. THÉIA also leads on monetization model (free vs ad-supported) and iOS requirement (13.0 vs 15.1). 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.

THÉIA ships an update every 8 months, Le Décodeur every 5 months. The most recent releases landed on September 26, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | THÉIA | Le Décodeur |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 14.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 5 months** |
| Monetization | **Free** | Ad-supported |
| Size | 3 MB | 34 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Le Groupe Maurice](https://appshunter.io/developer/1450659374) | [Protégez-Vous](https://appshunter.io/developer/524994420) |

## What reviewers say

### THÉIA

[App page](https://appshunter.io/ios/app/theia/id1450659375)

This app provides residents and their loved ones with essential information about daily life in their residence. Stay updated on activity schedules, news, dining menus, photo galleries, and important alerts in real time.

**Highlights:** Real-time alerts, Activity schedules, Dining room menus, Photo galleries, Latest news updates, Important event notifications

**Features:** macOS Compatibility

**In-app purchases:** none


### Le Décodeur

[App page](https://appshunter.io/ios/app/le-decodeur/id1612686402)

This app helps you make informed purchasing decisions by decoding eco-labels and analyzing cosmetic product ingredients. Scan labels to understand their meaning, scope, and reliability, and learn about ingredient risks based on product use.

**Highlights:** Scan eco-labels on various products, Analyze cosmetic ingredient risks, Understand eco-label meaning and reliability, Contribute by sharing eco-label photos, Quick access ingredient and eco-label directory

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

**In-app purchases:** none


## Frequently asked questions

### Is THÉIA free?

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

### Is Le Décodeur free?

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

### Do THÉIA or Le Décodeur have ads?

Neither THÉIA nor Le Décodeur shows ads.

### Which is updated more often, THÉIA or Le Décodeur?

THÉIA ships an update every 8 months, and Le Décodeur every 5 months. Most recently, THÉIA was updated on September 26, 2026 and Le Décodeur on September 30, 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.*