# Grain Theory vs Baking Journal

The clearest difference is in-app purchases: Grain Theory at none against Baking Journal's 2. Grain Theory also leads on iOS requirement (13.0 vs 17.6). Baking Journal's advantage is update cadence (every 3 days vs every 6 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Baking Journal sells 2 in-app purchases, starting at $4.99 per month. Grain Theory asks for nothing beyond the download.

Grain Theory ships an update every 6 weeks, Baking Journal every 3 days. The most recent releases landed on September 14, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Grain Theory | Baking Journal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/baking-journal/id6746287632/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 51 MB | 63 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Grain Theory](https://appshunter.io/developer/1804110253) | [ZMo Software](https://appshunter.io/developer/1816053930) |

## What reviewers say

### Grain Theory

[App page](https://appshunter.io/ios/app/grain-theory/id6743708276)

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

**In-app purchases:** none


### Baking Journal

[App page](https://appshunter.io/ios/app/baking-journal/id6746287632)

Easily manage all your baking projects with this app. Build recipes with detailed instructions, track individual bakes, and note what worked and what didn't. Share your baking data across multiple devices.

**Highlights:** Recipe building with ingredients and instructions, Hydration percentage calculation, Individual bake tracking, Notes on bake outcomes and changes, Cross-device data sharing

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Baking Journal Premium | $4.99 | per month |
| Baking Journal Premium | $39.99 | per year |


## Frequently asked questions

### Is Grain Theory free?

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

### Is Baking Journal free?

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

### Do Grain Theory or Baking Journal have ads?

Neither Grain Theory nor Baking Journal shows ads.

### Which is updated more often, Grain Theory or Baking Journal?

Grain Theory ships an update every 6 weeks, and Baking Journal every 3 days. Most recently, Grain Theory was updated on September 14, 2026 and Baking Journal on September 7, 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.*