# Project Sourdough vs Fermentation Tracker

The clearest difference is ads: Fermentation Tracker at none against Project Sourdough's shown. Project Sourdough's advantage is iOS requirement (15.0.0 vs 18.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Project Sourdough sells 1 one-off in-app purchase and Fermentation Tracker sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Project Sourdough ships an update every 3 weeks, Fermentation Tracker monthly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Project Sourdough | Fermentation Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | — | Freemium |
| Size | 62 MB | 15 MB |
| Requires iOS | **15.0.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Jonas Holgersson](https://appshunter.io/developer/1861143226) | [MASON QULIZADA](https://appshunter.io/developer/1869718916) |

## What reviewers say

### Project Sourdough

[App page](https://appshunter.io/ios/app/project-sourdough/id6756521530)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Upgrade | $49.99 | one-time |


### Fermentation Tracker

[App page](https://appshunter.io/ios/app/fermentation-tracker-fermenty/id6759230036)

Track and organize all your home fermentation projects, from kombucha to pickles. Log details, set timers, and analyze progress with charts and calculators. Save favorite recipes and export your data.

**Highlights:** Track various ferment types, Customizable batch stages and durations, Live timers with Lock Screen integration, Log temperature, pH, and tasting notes, Brine, ABV, and Baker's Math calculators, Create reusable batch templates, Export data as CSV

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fermenty Pro - Monthly | $2.99 | per month |
| Fermenty Pro – Yearly | $14.99 | per year |
| Fermenty Pro – Lifetime | $34.99 | one-time |


## Frequently asked questions

### Is Project Sourdough free?

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

### Is Fermentation Tracker free?

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

### Do Project Sourdough or Fermentation Tracker have ads?

Project Sourdough shows ads; Fermentation Tracker does not.

### Which is updated more often, Project Sourdough or Fermentation Tracker?

Project Sourdough ships an update every 3 weeks, and Fermentation Tracker monthly. Most recently, Project Sourdough was updated on October 24, 2026 and Fermentation Tracker 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.*