170+ iOS apps curated and reviewed
Every iPhone needs a few good stl simple viewer apps. We benchmark 170+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.3★ (866) | Yes | Yes | Sep 2026 | |
| 2 |  | Free | 4.5★ (65) | Yes | Yes | Sep 2026 | |
| 3 |  | Free | 4.2★ (49) | No | No | May 2026 | |
| 4 |  | Free | 4.9★ (7) | No | Yes | Sep 2026 | |
| 5 |  | Free | 4.5★ (4.1K) | No | No | Sep 2026 | |
| 6 |  | Free | 3.8★ (16) | No | No | Sep 2026 | |
| 7 |  | Free | 4.4★ (340) | No | Yes | Sep 2026 | |
| 8 |  | Free | 4.7★ (3.9K) | No | Yes | Sep 2026 |
Easily view and interact with 3D STL CAD models. Supports various file types and offers advanced rendering options for detailed analysis. Get model information and explore interiors with clipping planes.
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.
View and interact with 3D models in augmented reality. Share instant screenshots and screen recordings of your designs directly from the app.
