249+ iOS apps curated and reviewed
Finding the right stl viewer apps can be overwhelming with so many options. We've analyzed 249+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  STL & 3D Model Viewer - Mes3D | Free | 4.3★ (7) | No | Yes | Aug 2026 |
| 2 |  | Free | 4.3★ (866) | Yes | Yes | Aug 2026 |
| 3 |  | Free | 4.5★ (65) | Yes | Yes | Aug 2026 |
| 4 |  | Free | 4.9★ (7) | No | Yes | Aug 2026 |
| 5 |  | Free | 4.5★ (4.1K) | No | No | Aug 2026 |
| 6 |  | Free | 4.8★ (4) | Yes | No | Aug 2026 |
| 7 |  | Free | 4.2★ (49) | No | No | May 2026 |
| 8 |  | Free | 4.4★ (337) | No | Yes | Aug 2026 |
#1
Easily view, inspect, and explore 3D models on your device. Supports common file formats and offers intuitive touch controls for rotation, panning, and zooming. Visualize models in AR and capture snapshots for sharing.
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.
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.
Collaborate on 3D designs from anywhere with this mobile app. View, comment on, and share CAD models in over 100 formats. It works with a companion cloud-based desktop product for product design and development.
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.
View and interact with 3D models in augmented reality. Share instant screenshots and screen recordings of your designs directly from the app.
Explore and interact with 3D models on your mobile device. Simulate the 3D printing process to identify potential issues before committing to a print. Visualize your models in augmented reality, adjusting scale and rotation within your real-world environment.
This app consolidates 3D model searching, viewing, and slicing from major platforms into a single interface. It allows users to find, preview, organize, and prepare STL files for 3D printing, streamlining the entire workflow.
This free 3D viewer allows you to quickly load and inspect various 3D model file formats on any mobile device. It supports common open formats and offers intuitive controls for adjusting transparency, rotation, and shading. Specialized features are available for dental professionals using specific software.
Quickly view and interact with 3D model files. Rotate, zoom, and project models into your environment using augmented reality. Offers customization options and multi-model support.
View and annotate large PDF documents offline on your Apple devices. Compare multiple plans side-by-side, measure dimensions, and mark up drawings with precision tools. Ideal for professionals and anyone working with complex documents.
Capture your surroundings in high-quality 3D using your phone. Process scans directly on your device for privacy and speed. Share your creations globally on a map or export them for further use in 3D software.
Instantly open and review Microsoft Visio diagrams on your iPhone and iPad without needing a desktop or subscription. View network topologies, flowcharts, org charts, and more with powerful viewing tools and high-fidelity rendering. Works offline and supports various Visio file formats.
View and analyze medical imaging files like CT and MRI scans directly on your iPhone or iPad. Explore slices, adjust image properties, take measurements, and even generate 3D models without needing an account or cloud storage. Includes demo scans for immediate practice.
This tool allows you to open, view, and convert a wide variety of 3D file formats on your Apple devices. It offers basic editing, cross-sectioning, and exploded views, with options for batch conversion and exporting projected views.
View HTML, Markdown, ZIP web projects, and source files privately on your device. Inspect and export rendered pages offline, diagnose rendering issues, and view code files securely. Designed for developers, students, and anyone needing to inspect web content safely.
This app uses your device's LiDAR and camera to create real-time 3D scans of your surroundings. Visualize spatial data with point clouds and depth maps, with on-device processing for privacy. Unlock advanced features like a 3D map viewer and export options through an in-app purchase.