# Quel Produit vs Aquastealth

The clearest difference is update cadence: Quel Produit at fortnightly against Aquastealth's every 28 months. Quel Produit also leads on ratings volume (15 vs 1). Aquastealth's advantage is rating (5.0 vs 4.7). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Aquastealth holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Quel Produit has 15 ratings behind it against 1, so its average is the more settled of the two.

Quel Produit ships an update fortnightly, Aquastealth every 28 months. The most recent releases landed on October 25, 2026 and June 22, 2026 respectively.

## The numbers

| Metric | Quel Produit | Aquastealth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (15 ratings)](https://appshunter.io/ios/app/quel-produit-scan-code-barre/id1509421160/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/aquastealth/id1553655169/reviews)** |
| Number of ratings | **15** | 1 |
| Positive reviews | 86.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 28 months |
| Monetization | Free | Free |
| Size | 86 MB | 1 MB |
| Requires iOS | **16.0** | 16.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [QUE CHOISIR ENSEMBLE](https://appshunter.io/developer/946463700) | [Dmitriy Klimenko](https://appshunter.io/developer/1553655171) |

## What reviewers say

### Quel Produit

[App page](https://appshunter.io/ios/app/quel-produit-scan-code-barre/id1509421160)

Scan barcodes to get detailed information about food, cosmetic, and household products. Analyze composition, ingredients, nutritional values, and environmental impact with expert ratings and health scores.

**Highlights:** Barcode scanning for product analysis, Detailed composition and ingredient information, Nutritional value assessment (Nutri-Score), Environmental impact scoring (Planet-Score), Health ratings for food, cosmetics, and household products, Expert insights from UFC Que Choisir

**Features:** Vision Pro support

**In-app purchases:** none


### Aquastealth

[App page](https://appshunter.io/ios/app/aquastealth/id1553655169)

This app generates molecular hydrogen for your overall well-being, offering comfortable control over all settings. It supports 108 languages and allows you to set desired hydrogen/oxygen output levels.

**Highlights:** Molecular hydrogen generation, Customizable output levels, Comfortable control interface, Multilingual support (108 languages), Wellness focus

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Quel Produit free?

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

### Is Aquastealth free?

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

### Which has better reviews, Quel Produit or Aquastealth?

Aquastealth is rated higher. Quel Produit averages 4.7 out of 5 from 15 ratings, while Aquastealth averages 5.0 from 1 ratings.

### Do Quel Produit or Aquastealth have ads?

Neither Quel Produit nor Aquastealth shows ads.

### Which is updated more often, Quel Produit or Aquastealth?

Quel Produit ships an update fortnightly, and Aquastealth every 28 months. Most recently, Quel Produit was updated on October 25, 2026 and Aquastealth on June 22, 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.*