247+ iOS apps curated and reviewed
The best 3d stl viewer apps on iPhone average 4.3★ across 247+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.3★ (866) | Yes | Yes | Sep 2026 | |
| 2 |  | Free | 4.8★ (5) | Yes | No | Sep 2026 | |
| 3 |  | Free | 4.5★ (65) | Yes | Yes | Sep 2026 | |
| 4 |  | Free | 4.5★ (48) | No | Yes | Sep 2026 | |
| 5 |  | Free | — | No | Yes | Aug 2026 | |
| 6 |  | Free | 4.4★ (340) | No | Yes | Sep 2026 | |
| 7 |  | Free | — | No | Yes | Sep 2026 | |
| 8 |  | Free | 4.9★ (7) | 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.
Instantly view and inspect a wide range of 3D file formats directly on your device. Offers AR viewing, 3D printing readiness checks, and detailed model specifications without requiring an account or cloud upload.
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.
