249+ iOS apps curated and reviewed
STL File Viewer Pro is the household name in fast stl viewer, but it's far from the only option. We track 249+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.5★ (65) | Yes | Yes | Sep 2026 | |
| 2 |  | Free | 4.9★ (7) | No | Yes | Sep 2026 | |
| 3 |  | Free | 4.3★ (866) | Yes | Yes | Sep 2026 | |
| 4 |  | Free | — | Yes | Yes | Aug 2026 | |
| 5 |  | Free | — | No | Yes | Aug 2026 | |
| 6 |  | Free | — | No | Yes | Sep 2026 | |
| 7 |  | Free | 4.2★ (49) | No | No | May 2026 | |
| 8 |  | Free | — | Yes | Yes | Jul 2026 |
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.
Instantly open and preview 3D STL files with a smooth, responsive interface. Explore models by rotating and zooming, switch to wireframe mode, and customize colors for better visibility. This app offers a distraction-free viewing experience for checking models or print details on the go.
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.
