# Fermentis vs ChelApp

The clearest difference is update cadence: ChelApp at every 3 days against Fermentis's every 6 weeks. Fermentis's advantage is iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

Fermentis ships an update every 6 weeks, ChelApp every 3 days. The most recent releases landed on October 5, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Fermentis | ChelApp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.1 (14 ratings)](https://appshunter.io/ios/app/fermentis/id1403381516/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 15.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 days** |
| Monetization | Free | — |
| Size | 38 MB | 39 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [SOCIETE INDUSTRIELLE LESAFFRE](https://appshunter.io/developer/1284863866) | [Jose Jorquera](https://appshunter.io/developer/1896314645) |

## What reviewers say

### Fermentis

[App page](https://appshunter.io/ios/app/fermentis/id1403381516)

Explore the world of fermentation with this app. Discover a wide range of fermentation solutions and products. Stay updated on the latest news and launches, and utilize fermentation tools to select the ideal yeast for your projects.

**Highlights:** Discover fermentation solutions, Find products easily, Latest news and launches, Fermentation tools, Choose the right yeast

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

**In-app purchases:** none


### ChelApp

[App page](https://appshunter.io/ios/app/chelapp/id6766683453)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fermentis free?

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

### Is ChelApp free?

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

### Do Fermentis or ChelApp have ads?

Neither Fermentis nor ChelApp shows ads.

### Which is updated more often, Fermentis or ChelApp?

Fermentis ships an update every 6 weeks, and ChelApp every 3 days. Most recently, Fermentis was updated on October 5, 2026 and ChelApp on October 15, 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.*