# Crumb vs Boule

The clearest difference is iOS requirement: Crumb at 17.0 against Boule's 26.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Crumb sells 4 in-app purchases, starting at $2.99 per month and Boule sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Crumb | Boule |
| --- | --- | --- |
| 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 | No | No |
| Update frequency | Every 5 days | — |
| Monetization | Freemium | — |
| Size | 20 MB | 18 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Zenmonkeys Digital LLC](https://appshunter.io/developer/1868802546) | [Andrii Bashta](https://appshunter.io/developer/1547467775) |

## What reviewers say

### Crumb

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

This AI-powered companion analyzes your sourdough bread's fermentation, crumb structure, and hydration from a single photo. It provides personalized recommendations for future bakes and tracks your progress in a detailed baking journal. Features include proofing timers, starter health checks, and baking calculators.

**Highlights:** AI crumb analysis for fermentation and structure, Proofing tracker with temperature-aware predictions, Starter coach with feeding logs and health checks, Baking journal to track bakes and progress, Mixing-water calculator, Recipe vault

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Crumb Pro | $2.99 | per month |
| Crumb Pro (Annual) | $19.99 | per year |
| 3 Scans | $0.99 | one-time |
| 15 Scans | $3.99 | one-time |


### Boule

[App page](https://appshunter.io/ios/app/boule-sourdough-starter/id6780806346)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Crumb Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Crumb free?

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

### Is Boule free?

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

### Do Crumb or Boule have ads?

Neither Crumb nor Boule shows ads.

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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.*