# Kombucha Keeper vs Fermentation Lab

The clearest difference is update cadence: Fermentation Lab at fortnightly against Kombucha Keeper's every 2 months. 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.

Kombucha Keeper ships an update every 2 months, Fermentation Lab fortnightly. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Kombucha Keeper | Fermentation Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Size | 23 MB | 84 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Wesley Dudok van Heel](https://appshunter.io/developer/1726921748) | [Antonio Lice](https://appshunter.io/developer/1888002310) |

## What reviewers say

### Kombucha Keeper

[App page](https://appshunter.io/ios/app/kombucha-keeper/id6746731068)

**In-app purchases:** none


### Fermentation Lab

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Kombucha Keeper free?

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

### Is Fermentation Lab free?

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

### Do Kombucha Keeper or Fermentation Lab have ads?

Neither Kombucha Keeper nor Fermentation Lab shows ads.

### Which is updated more often, Kombucha Keeper or Fermentation Lab?

Kombucha Keeper ships an update every 2 months, and Fermentation Lab fortnightly. Most recently, Kombucha Keeper was updated on October 28, 2026 and Fermentation Lab on October 24, 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.*