# Fermentis vs Brew Day Toolbox

The clearest difference is review sentiment: Brew Day Toolbox at 100% against Fermentis's 16%. Fermentis's advantage is update cadence (every 6 weeks vs every 4 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Fermentis ships an update every 6 weeks, Brew Day Toolbox every 4 months. The most recent releases landed on October 22, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Fermentis | Brew Day Toolbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.1 (14 ratings)](https://appshunter.io/ios/app/fermentis/id1403381516/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 15.8% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Monetization | Free | Free |
| Size | 38 MB | 29 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [SOCIETE INDUSTRIELLE LESAFFRE](https://appshunter.io/developer/1284863866) | [Daniel Amos](https://appshunter.io/developer/1701109036) |

## What reviewers say

### Fermentis

[App page](https://appshunter.io/ios/app/fermentis/id1403381516)

Explore the world of fermentation with this app. Discover a wide range of fermentation solutions and products. Stay updated on the latest news and launches, and utilize fermentation tools to select the ideal yeast for your projects.

**Highlights:** Discover fermentation solutions, Find products easily, Latest news and launches, Fermentation tools, Choose the right yeast

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

**In-app purchases:** none


### Brew Day Toolbox

[App page](https://appshunter.io/ios/app/brew-day-toolbox/id6466722388)

This app provides comprehensive tools for brewing beer, including calculators for ABV, recipe scaling, and priming sugar. It also features a beer scorer to help improve brews and a timer to manage the brewing process. Keep track of your brewing to-do list and manage ingredients efficiently.

**Highlights:** Brewing calculators (ABV, recipe scaling, priming sugar), Beer scoring system, Brewing to-do list management, Brewing timer, Ingredient management, Mash monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fermentis free?

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

### Is Brew Day Toolbox free?

Brew Day Toolbox is free to download, with no in-app purchases.

### Do Fermentis or Brew Day Toolbox have ads?

Neither Fermentis nor Brew Day Toolbox shows ads.

### Which is updated more often, Fermentis or Brew Day Toolbox?

Fermentis ships an update every 6 weeks, and Brew Day Toolbox every 4 months. Most recently, Fermentis was updated on October 22, 2026 and Brew Day Toolbox on October 9, 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.*