# Fermentation Journal vs FermentFlow

The clearest difference is in-app purchases: FermentFlow at none against Fermentation Journal's 5. FermentFlow also leads on update cadence (every 3 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Fermentation Journal sells 5 in-app purchases, starting at $3.99 per 7 days. FermentFlow asks for nothing beyond the download.

Fermentation Journal ships an update monthly, FermentFlow every 3 days. The most recent releases landed on September 10, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Fermentation Journal | FermentFlow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Size | 105 MB | 203 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [Drobinin Limited](https://appshunter.io/developer/1713029153) | [Kyle Taborski](https://appshunter.io/developer/1788807316) |

## What reviewers say

### Fermentation Journal

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

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Culture Pro Weekly | $3.99 | per 7 days |
| Culture & Probiotic Pro | $7.99 | per month |
| Culture & Probiotic Pro | $59.99 | per year |
| HACCP Safety Compliance Pro | $179.99 | per year |
| Lifetime (Personal) | $199.99 | one-time |


### FermentFlow

[App page](https://appshunter.io/ios/app/fermentflow/id6740185559)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fermentation Journal free?

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

### Is FermentFlow free?

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

### Do Fermentation Journal or FermentFlow have ads?

Neither Fermentation Journal nor FermentFlow shows ads.

### Which is updated more often, Fermentation Journal or FermentFlow?

Fermentation Journal ships an update monthly, and FermentFlow every 3 days. Most recently, Fermentation Journal was updated on September 10, 2026 and FermentFlow on September 15, 2026.

---

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