# Moongate vs STL Viewer

The clearest difference is in-app purchases: Moongate at none against STL Viewer's 8. Moongate also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. STL Viewer sells 8 in-app purchases, starting at $1.99 per month. Moongate asks for nothing beyond the download.

Moongate ships an update every 10 days, STL Viewer every 2 weeks. The most recent releases landed on October 31, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Moongate | STL Viewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 10 days** | Every 2 weeks |
| Size | 39 MB | 49 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Paul Sharman](https://appshunter.io/developer/6785038889) | [Sahana A S](https://appshunter.io/developer/1800491118) |

## What reviewers say

### Moongate

[App page](https://appshunter.io/ios/app/moongate-klipper-control/id6785038887)

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

**In-app purchases:** none


### STL Viewer

[App page](https://appshunter.io/ios/app/stl-viewer-3d-print-and-g-code/id6813788641)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LayerPeek Pro Monthly | $1.99 | per month |
| Pro Lifetime Limited Offer | $5.99 | one-time |
| Pro Lifetime Limited Offer | $7.99 | one-time |
| Pro Lifetime Limited Offer | $9.99 | one-time |
| Pro Lifetime Limited Offer | $11.99 | one-time |
| Pro Lifetime Limited Offer | $13.99 | one-time |
| Pro Lifetime Limited Offer | $15.99 | one-time |
| LayerPeek Pro Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Moongate free?

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

### Is STL Viewer free?

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

### Do Moongate or STL Viewer have ads?

STL Viewer shows ads; Moongate does not.

### Which is updated more often, Moongate or STL Viewer?

Moongate ships an update every 10 days, and STL Viewer every 2 weeks. Most recently, Moongate was updated on October 31, 2026 and STL Viewer on November 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.*