# Node.js Lab vs STL File Viewer Pro

The clearest difference is review sentiment: Node.js Lab at 63% against STL File Viewer Pro's 10%. Node.js Lab also leads on iOS requirement (13.0 vs 16.6). STL File Viewer Pro's advantage is rating (4.5 vs 3.9) and update cadence (fortnightly vs every 5 weeks). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Node.js Lab sells 2 one-off in-app purchases and STL File Viewer Pro sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

STL File Viewer Pro holds the better App Store score, 4.5 against 3.9. Both are backed by a comparable volume of ratings — 24 and 65 respectively. Written reviews complicate that: 63% of Node.js Lab's written reviews are positive against 10% of STL File Viewer Pro's, so the app with the better star average is not the one people write more warmly about.

Node.js Lab ships an update every 5 weeks, STL File Viewer Pro fortnightly. The most recent releases landed on September 21, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Node.js Lab | STL File Viewer Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (24 ratings)](https://appshunter.io/ios/app/nodejs-lab/id1550710789/reviews) | **[4.5 (65 ratings)](https://appshunter.io/ios/app/stl-file-viewer-pro/id6741022143/reviews)** |
| Number of ratings | 24 | **65** |
| Positive reviews | **62.5% of reviews** | 10.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #172 | **#33** |
| Size | 154 MB | 16 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Firas Moussa](https://appshunter.io/developer/547104847) | [Andeesh Mehdi Syed](https://appshunter.io/developer/1676226599) |

## What reviewers say

### Node.js Lab

[App page](https://appshunter.io/ios/app/nodejs-lab/id1550710789)

**Currently charting:** #172 Top Free · Developer Tools (US App Store)

Develop and run Node.js web applications directly on your iOS device, even offline. This app includes a full Node.js environment with NPM, a script editor, and debugging tools. It also functions as a standalone web application and offers extensive file management capabilities.

**Highlights:** Offline Node.js environment, Integrated Git client, Multi-tabbed script editor, NPM support, Standalone web app functionality, Remote file management, Offline documentation

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all features | $4.99 | one-time |
| Standalone Web Application | $9.99 | one-time |


### STL File Viewer Pro

[App page](https://appshunter.io/ios/app/stl-file-viewer-pro/id6741022143)

**Currently charting:** #33 Top Grossing · Developer Tools, #107 Top Free · Developer Tools (US App Store)

Easily view, rotate, and inspect 3D STL files on your iPhone or iPad. Load models instantly from various sources for 3D printing, design review, or engineering inspection.

**Highlights:** Instant STL file loading, Full 360° rotation and zoom, Sharp detail rendering, Light and dark mode support, Lightweight and fast performance, Open files from Files, email, AirDrop

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| Monthly | $3.99 | per month |
| Ad Free for 1 Year | $24.99 | per year |


## Frequently asked questions

### Is Node.js Lab free?

Node.js Lab is free to download, with in-app purchases available.

### Is STL File Viewer Pro free?

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

### Which has better reviews, Node.js Lab or STL File Viewer Pro?

STL File Viewer Pro is rated higher. Node.js Lab averages 3.9 out of 5 from 24 ratings, while STL File Viewer Pro averages 4.5 from 65 ratings.

### Do Node.js Lab or STL File Viewer Pro have ads?

Both Node.js Lab and STL File Viewer Pro show ads.

### Which is updated more often, Node.js Lab or STL File Viewer Pro?

Node.js Lab ships an update every 5 weeks, and STL File Viewer Pro fortnightly. Most recently, Node.js Lab was updated on September 21, 2026 and STL File Viewer Pro on September 24, 2026.

### Which is more popular, Node.js Lab or STL File Viewer Pro?

Node.js Lab currently peaks at #172 in the App Store charts, and STL File Viewer Pro at #33. Chart position reflects recent download velocity rather than total install base.

---

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