# ClayLab vs Groutr

The clearest difference is review sentiment: ClayLab at 91% against Groutr's 44%. ClayLab also leads on ads (none vs shown) and rating (4.6 vs 4.3). Groutr's advantage is update cadence (every 3 weeks vs every 2 months) and device support (3 vs 1). On price, in-app purchases and monetization model there is nothing between them.

Both are free to download. ClayLab sells 2 in-app purchases, starting at $4.99 per month and Groutr sells 3 in-app purchases, starting at $29.99 per year. Whichever you choose, the download price is not the number that matters.

ClayLab holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: ClayLab has 369 ratings behind it against 56, so its average is the more settled of the two. Written reviews point the same way: 91% of ClayLab's written reviews are positive against 44% of Groutr's.

ClayLab ships an update every 2 months, Groutr every 3 weeks. The most recent releases landed on October 23, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | ClayLab | Groutr |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (369 ratings)](https://appshunter.io/ios/app/claylab/id1455800155/reviews)** | [4.3 (56 ratings)](https://appshunter.io/ios/app/groutr-grout-color-visualizer/id1671246018/reviews) |
| Number of ratings | **369** | 56 |
| Positive reviews | **91.4% of reviews** | 44.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 27 MB | 74 MB |
| Requires iOS | 16.4 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lorenzo Calvani](https://appshunter.io/developer/1455800154) | [Neural Appworks LLC](https://appshunter.io/developer/1671246020) |

## What reviewers say

### ClayLab

[App page](https://appshunter.io/ios/app/claylab/id1455800155)

A digital diary for ceramists to meticulously document their pottery projects. Track every stage, from forming to firing, and record detailed information about glazes, clay bodies, and application techniques. Organize and retrieve your work with advanced search and backup features.

**Highlights:** Comprehensive progress tracking, Detailed documentation of glazes and materials, Advanced search and filtering, Data backup and import/export, Layering and application details logging, Unlimited photos per piece

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Yearly | $49.99 | per year |

**What reviewers like**

- 🚀 Helpful for organizing pottery pieces
- 👍 Customizable options for clays, glazes, and forms
- 📸 Ability to take and store photos of pieces
- 🗒️ Detailed notes and tracking capabilities
- 🔍 Useful for remembering glaze combinations

**What reviewers complain about**

- 🔒 No backup or export functionality
- 🔍 Lack of search and filtering options
- 🔢 Limited to 3 glaze layers per piece
- 📏 No metric measurement options
- 🗑️ Unable to delete pre-populated options

**Reported bugs**

- Occasional crashes or performance issues
- Data loss when changing devices or reinstalling

**Requested features**

- Add hand-building option alongside thrown pieces
- Ability to track firing details (cone, atmosphere, etc.)
- Option to create custom categories (e.g., sold, gifted)
- Search and filter by glaze, clay, form, etc.
- Sync data across devices (iCloud, etc.)


### Groutr

[App page](https://appshunter.io/ios/app/groutr-grout-color-visualizer/id1671246018)

Visualize grout colors on your own tile projects before committing. Upload a photo, and the app automatically detects grout lines to let you try multiple shades, compare options, and even create multi-color designs with precision editing tools.

**Highlights:** Visualize grout colors on your own tiles, Automatic grout line detection, Try multiple grout shades simultaneously, Visualize multi-color grout designs, Precision editing tools, Color matching from images

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro - Annual | $29.99 | per year |
| Pro - Day pass | $2.99 | one-time |
| Remove Ads | $59.99 | one-time |


## Frequently asked questions

### Is ClayLab free?

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

### Is Groutr free?

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

### Which has better reviews, ClayLab or Groutr?

ClayLab is rated higher. ClayLab averages 4.6 out of 5 from 369 ratings, while Groutr averages 4.3 from 56 ratings.

### Do ClayLab or Groutr have ads?

Groutr shows ads; ClayLab does not.

### Which is updated more often, ClayLab or Groutr?

ClayLab ships an update every 2 months, and Groutr every 3 weeks. Most recently, ClayLab was updated on October 23, 2026 and Groutr on October 27, 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.*