# Fermentation Lab vs Kefir Timer

The clearest difference is iOS requirement: Fermentation Lab at 15.1 against Kefir Timer's 17.0. 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.

## The numbers

| Metric | Fermentation Lab | Kefir Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Size | 84 MB | 1 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Antonio Lice](https://appshunter.io/developer/1888002310) | [Luis Toro Puig](https://appshunter.io/developer/6797258199) |

## What reviewers say

### Fermentation Lab

[App page](https://appshunter.io/ios/app/fermentation-lab-ferments/id6761143434)

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

**In-app purchases:** none


### Kefir Timer

[App page](https://appshunter.io/ios/app/kefir-timer/id6815403822)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fermentation Lab free?

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

### Is Kefir Timer free?

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

### Do Fermentation Lab or Kefir Timer have ads?

Neither Fermentation Lab nor Kefir Timer shows ads.

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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.*