# Spool Zone vs KatMon

The clearest difference is in-app purchases: KatMon at none against Spool Zone's 3. KatMon also leads on update cadence (every 2 days vs weekly). Spool Zone's advantage is iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Spool Zone sells 3 one-off in-app purchases. KatMon asks for nothing beyond the download.

Spool Zone ships an update weekly, KatMon every 2 days. The most recent releases landed on October 12, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Spool Zone | KatMon |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 2 days** |
| Size | 84 MB | 33 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [玉文 赵](https://appshunter.io/developer/1805502247) | [Olcay OREN](https://appshunter.io/developer/1894051255) |

## What reviewers say

### Spool Zone

[App page](https://appshunter.io/ios/app/spool-zone-3d-filament-box/id6744862175)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SpoolZoneAir | $4.99 | one-time |
| Lifetime Membership | $7.99 | one-time |
| SpoolZonePro | $7.99 | one-time |


### KatMon

[App page](https://appshunter.io/ios/app/katmon/id6762404551)

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

**In-app purchases:** none


## Frequently asked questions

### Is Spool Zone free?

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

### Is KatMon free?

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

### Do Spool Zone or KatMon have ads?

Neither Spool Zone nor KatMon shows ads.

### Which is updated more often, Spool Zone or KatMon?

Spool Zone ships an update weekly, and KatMon every 2 days. Most recently, Spool Zone was updated on October 12, 2026 and KatMon on October 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*