# Fermento vs Kombu Time

The clearest difference is in-app purchases: Kombu Time at none against Fermento's 4. Kombu Time also leads on iOS requirement (15.3 vs 17.0). Fermento's advantage is review sentiment (100% vs 75%) and update cadence (monthly vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Fermento sells 4 in-app purchases, starting at $3.99 per 7 days. Kombu Time asks for nothing beyond the download.

Fermento ships an update monthly, Kombu Time every 3 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Fermento | Kombu Time |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (4 ratings)](https://appshunter.io/ios/app/kombu-time/id6642685148/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | **100.0% of reviews** | 75.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 111 MB | 37 MB |
| Requires iOS | 17.0 | **15.3** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Drobinin Limited](https://appshunter.io/developer/1713029153) | [Lammert Westerhoff](https://appshunter.io/developer/1043536838) |

## What reviewers say

### Fermento

[App page](https://appshunter.io/ios/app/fermento-fermentation-journal/id6470132496)

Track and manage all your fermentation projects, from sourdough and cheese to kombucha and pickles. Features smart timelines, custom reminders, and helpful calculators for precise results. Includes advanced logging and export options for professional use.

**Highlights:** Unlimited fermentation batches, Customizable timelines and milestones, Smart reminders for tasks, pH, salt %, and weight tracking, Culture management, HACCP decision-tree builder, Recipe scaling calculators

**Features:** macOS Compatibility, Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fermentation Tracker Unlimited | $3.99 | per 7 days |
| Culture & Probiotic Pro | $7.99 | per month |
| Fermentation Tracker Unlimited | $59.99 | per year |
| HACCP Safety Compliance Pro | $179.99 | per year |


### 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 Fermento free?

Fermento is free to download, with in-app purchases available.

### Is Kombu Time free?

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

### Do Fermento or Kombu Time have ads?

Neither Fermento nor Kombu Time shows ads.

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

Fermento ships an update monthly, and Kombu Time every 3 months. Most recently, Fermento was updated on November 3, 2026 and Kombu Time on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*