# Project Sourdough vs Crumb

The clearest difference is ads: Crumb at none against Project Sourdough's shown. Crumb also leads on update cadence (every 5 days vs fortnightly). Project Sourdough's advantage is iOS requirement (15.0.0 vs 17.0). On price, 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 Crumb sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Project Sourdough ships an update fortnightly, Crumb every 5 days. The most recent releases landed on October 18, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Project Sourdough | Crumb |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/crumb-sourdough-bread-reader/id6777581829/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | — | Freemium |
| Size | 70 MB | 19 MB |
| Requires iOS | **15.0.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jonas Holgersson](https://appshunter.io/developer/1861143226) | [Zenmonkeys Digital LLC](https://appshunter.io/developer/1868802546) |

## 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 |


### Crumb

[App page](https://appshunter.io/ios/app/crumb-sourdough-bread-reader/id6777581829)

This AI-powered companion analyzes your sourdough bakes, providing feedback on fermentation, crumb structure, and hydration. It helps you track your progress, manage your starter, and offers tools for better bread-making.

**Highlights:** AI crumb analysis for openness and evenness, Fermentation evaluation (under, well, over), Proofing tracker with temperature-aware predictions, Starter health checks and feeding logs, Mixing-water calculator, Photo-first baking journal

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Crumb Pro | $4.99 | per month |
| Crumb Pro (Annual) | $34.99 | per year |
| 3 Scans | $0.99 | one-time |
| 15 Scans | $3.99 | one-time |


## Frequently asked questions

### Is Project Sourdough free?

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

### Is Crumb free?

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

### Do Project Sourdough or Crumb have ads?

Project Sourdough shows ads; Crumb does not.

### Which is updated more often, Project Sourdough or Crumb?

Project Sourdough ships an update fortnightly, and Crumb every 5 days. Most recently, Project Sourdough was updated on October 18, 2026 and Crumb on October 23, 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.*