# ClayLab vs Thetis Tools

The clearest difference is in-app purchases: Thetis Tools at none against ClayLab's 2. Thetis Tools also leads on device support (3 vs 1) and iOS requirement (14.0 vs 16.4). ClayLab's advantage is update cadence (every 2 months vs every 7 months). On price and ads there is nothing between them.

Both are free to download. ClayLab sells 2 in-app purchases, starting at $4.99 per month. Thetis Tools asks for nothing beyond the download.

ClayLab ships an update every 2 months, Thetis Tools every 7 months. The most recent releases landed on September 23, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | ClayLab | Thetis Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (358 ratings)](https://appshunter.io/ios/app/claylab/id1455800155/reviews)** | — |
| Number of ratings | **358** | — |
| Positive reviews | 91.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Freemium | — |
| Size | 27 MB | 50 MB |
| Requires iOS | 16.4 | **14.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lorenzo Calvani](https://appshunter.io/developer/1455800154) | [Thetis srl](https://appshunter.io/developer/397584184) |

## 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.)


### Thetis Tools

[App page](https://appshunter.io/ios/app/thetis-tools/id1460268980)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ClayLab free?

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

### Is Thetis Tools free?

Thetis Tools is free to download, with no in-app purchases.

### Do ClayLab or Thetis Tools have ads?

Neither ClayLab nor Thetis Tools shows ads.

### Which is updated more often, ClayLab or Thetis Tools?

ClayLab ships an update every 2 months, and Thetis Tools every 7 months. Most recently, ClayLab was updated on September 23, 2026 and Thetis Tools on September 10, 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.*