# FermentApp vs Kombu Time

The clearest difference is price: Kombu Time at Free against FermentApp's $4.99. FermentApp's advantage is rating (5.0 vs 3.5) and update cadence (every 8 days vs every 3 months). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Kombu Time is free to download; FermentApp costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

FermentApp holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 100% of FermentApp's written reviews are positive against 75% of Kombu Time's.

FermentApp ships an update every 8 days, Kombu Time every 3 months. Both last shipped on September 21, 2026.

## The numbers

| Metric | FermentApp | Kombu Time |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fermentapp/id1664266980/reviews)** | [3.5 (2 ratings)](https://appshunter.io/ios/app/kombu-time/id6642685148/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | **100.0% of reviews** | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 3 months |
| Monetization | Paid | **Free** |
| Size | 31 MB | 37 MB |
| Requires iOS | **13.0** | 15.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Lostium Project](https://appshunter.io/developer/1195612978) | [Lammert Westerhoff](https://appshunter.io/developer/1043536838) |

## What reviewers say

### FermentApp

[App page](https://appshunter.io/ios/app/fermentapp/id1664266980)

Learn the art of fermentation and pickling with step-by-step lessons and guided recipes. Explore a variety of techniques, from basic lactofermentation to making kimchi, with audio options for on-the-go learning. This app offers a comprehensive guide for beginners to create delicious homemade ferments.

**Highlights:** 10 illustrated theory lessons, Audio versions of lessons, 16 guided step-by-step recipes, Recipe alerts and notifications, Vegan options for recipes, Content in English and Spanish

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

**In-app purchases:** none


### Kombu Time

[App page](https://appshunter.io/ios/app/kombu-time/id6642685148)

This app simplifies the kombucha brewing process by offering straightforward tracking of fermentations, timely notifications, and an overview of all your brews. It allows optional logging of flavors and tea types, with a brew history and exportable data.

**Highlights:** Brew management for first and second fermentation, Home screen widgets for brew status, Timely bottling and readiness notifications, At-a-glance brew overview, Brew history and statistics, Optional flavor and tea type tracking, Exportable brewing data

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FermentApp free?

FermentApp costs $4.99, with no in-app purchases.

### Is Kombu Time free?

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

### Which has better reviews, FermentApp or Kombu Time?

FermentApp is rated higher. FermentApp averages 5.0 out of 5 from 1 ratings, while Kombu Time averages 3.5 from 2 ratings.

### Do FermentApp or Kombu Time have ads?

Neither FermentApp nor Kombu Time shows ads.

### Which is updated more often, FermentApp or Kombu Time?

FermentApp ships an update every 8 days, and Kombu Time every 3 months. Most recently, FermentApp was updated on September 21, 2026 and Kombu Time on September 21, 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.*