# KilnTrack vs Clay & Fire

The clearest difference is in-app purchases: KilnTrack at none against Clay & Fire's 4. KilnTrack also leads on iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Clay & Fire sells 4 one-off in-app purchases. KilnTrack asks for nothing beyond the download.

## The numbers

| Metric | KilnTrack | Clay & Fire |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 days | — |
| Size | 25 MB | 87 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Koki Naniwa](https://appshunter.io/developer/1457416956) | [Damian Rizzotto](https://appshunter.io/developer/6798892573) |

## What reviewers say

### KilnTrack

[App page](https://appshunter.io/ios/app/kilntrack/id6758076009)

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

**In-app purchases:** none


### Clay & Fire

[App page](https://appshunter.io/ios/app/clay-and-fire/id6798892571)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donation | $0.99 | one-time |
| Donation | $2.99 | one-time |
| Donation | $4.99 | one-time |
| Donation | $9.99 | one-time |


## Frequently asked questions

### Is KilnTrack free?

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

### Is Clay & Fire free?

Clay & Fire is free to download, with in-app purchases available.

### Do KilnTrack or Clay & Fire have ads?

Neither KilnTrack nor Clay & Fire 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.*