# Bubbles vs Sourdough Starter

The clearest difference is update cadence: Sourdough Starter at every 3 days against Bubbles's every 3 months. Bubbles's advantage is device support (3 vs 1) and iOS requirement (15.3 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Bubbles sells 2 in-app purchases, starting at $3.99 per month and Sourdough Starter sells 2 in-app purchases, starting at $4.49 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Bubbles against 5.0 for Sourdough Starter. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Bubbles ships an update every 3 months, Sourdough Starter every 3 days. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Bubbles | Sourdough Starter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/bubbles-fermentation-tracker/id6763739736/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/sourdough-starter-fermento/id6807519703/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | Freemium | Freemium |
| Size | 95 MB | 16 MB |
| Requires iOS | **15.3** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [MANTAS LATKAUSKAS](https://appshunter.io/developer/1895468107) | [Jonas Polenz](https://appshunter.io/developer/6792573374) |

## What reviewers say

### Bubbles

[App page](https://appshunter.io/ios/app/bubbles-fermentation-tracker/id6763739736)

Track your home fermentation projects with recipes, reminders, and notes. This app helps you manage sauerkraut, kimchi, kombucha, and more, with options to create your own recipes and store your progress.

**Highlights:** Fermentation recipes, Custom recipe creation, Batch notes and photos, Ferment archive, Guides on fermentation, Offline functionality

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bubbles Premium Monthly | $3.99 | per month |
| Bubbles Premium Annual | $29.99 | per year |


### Sourdough Starter

[App page](https://appshunter.io/ios/app/sourdough-starter-fermento/id6807519703)

This app helps you track and care for your sourdough starter and other ferments. It uses your phone's camera to analyze your starter's progress and provides personalized feeding schedules and troubleshooting advice. It also includes recipes and calculators for various fermented foods.

**Highlights:** Camera-based starter analysis, Personalized feeding schedules, Troubleshooting for ferment issues, Recipes for starter and other ferments, Ferment tracking for multiple types, Bake planning and calculators, Voice and widget controls

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FermentoPlusMonthly | $4.49 | per month |
| Fermento Yearly | $35.99 | per year |


## Frequently asked questions

### Is Bubbles free?

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

### Is Sourdough Starter free?

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

### Which has better reviews, Bubbles or Sourdough Starter?

Bubbles and Sourdough Starter are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Bubbles or Sourdough Starter have ads?

Neither Bubbles nor Sourdough Starter shows ads.

### Which is updated more often, Bubbles or Sourdough Starter?

Bubbles ships an update every 3 months, and Sourdough Starter every 3 days. Most recently, Bubbles was updated on October 31, 2026 and Sourdough Starter on November 6, 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.*