# Prusa vs STL Preview

The clearest difference is in-app purchases: Prusa at none against STL Preview's 1. Prusa also leads on ads (none vs shown). STL Preview's advantage is update cadence (every 3 days vs every 5 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. STL Preview sells 1 one-off in-app purchase. Prusa asks for nothing beyond the download.

Prusa ships an update every 5 weeks, STL Preview every 3 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Prusa | STL Preview |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (117 ratings)](https://appshunter.io/ios/app/prusa/id6477531937/reviews)** | — |
| Number of ratings | **117** | — |
| Positive reviews | 50.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 3 days** |
| Monetization | Free | — |
| Size | 102 MB | 34 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Prusa Research a.s.](https://appshunter.io/developer/1729557743) | [Enes Akkus](https://appshunter.io/developer/1416782412) |

## What reviewers say

### Prusa

[App page](https://appshunter.io/ios/app/prusa/id6477531937)

Monitor and manage your 3D printers remotely. Control print parameters, receive notifications for print status, and integrate with model repositories and slicing software. Easily add new printers and cameras, with options for cloud or on-premises storage.

**Highlights:** Real-time printer overview, Remote print management, Temperature, speed, flow control, Push notifications, Printables.com integration, EasyPrint slicing integration, NFC printer setup

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

**In-app purchases:** none

**What reviewers like**

- 🔔 Push notifications for finished prints
- 🔍 Ability to monitor printers and print status
- 🌟 Overall great user experience and functionality

**What reviewers complain about**

- 🐞 Bugs and glitches, including issues with offline printers
- 📷 Lack of camera support and monitoring
- 🔍 Suboptimal design for single-printer users
- 🔧 Missing features compared to the website, such as file uploads and statistics


### STL Preview

[App page](https://appshunter.io/ios/app/stl-preview/id6773179410)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.49 | one-time |


## Frequently asked questions

### Is Prusa free?

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

### Is STL Preview free?

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

### Do Prusa or STL Preview have ads?

STL Preview shows ads; Prusa does not.

### Which is updated more often, Prusa or STL Preview?

Prusa ships an update every 5 weeks, and STL Preview every 3 days. Most recently, Prusa was updated on October 25, 2026 and STL Preview on October 24, 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.*