195+ 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 195+ 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 | Aug 2026 |
| 2 |  | Free | 4.9★ (7) | No | Yes | Aug 2026 |
| 3 |  | Free | 4.3★ (866) | Yes | Yes | Aug 2026 |
| 4 |  | Free | — | Yes | Yes | Aug 2026 |
| 5 |  | Free | 4.2★ (49) | No | No | May 2026 |
| 6 |  | Free | — | Yes | Yes | Jul 2026 |
| 7 |  | Free | 4.5★ (1.1K) | Yes | Yes | Aug 2026 |
| 8 |  | Free | 4.6★ (48) | No | 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.
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 interact with 3D models in augmented reality. Share instant screenshots and screen recordings of your designs directly from the app.
This cross-platform CAD application allows users to view, edit, and create 2D and 3D designs on the go. It supports a wide range of file formats and offers advanced tools for precise drawing, measurement, and annotation, even offline.
Easily open and explore 3D model files on your iPhone or iPad. Supports over 20 popular formats, offering smooth viewing with intuitive touch controls. Ideal for designers, engineers, architects, and students working with 3D data.
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.
Transform your device into a powerful 3D scanner using LIDAR or TrueDepth technology. Capture spaces and objects in full-color 3D, edit scans, and share them in various popular formats for professional workflows or personal projects.
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.
View and interact with various 3D model formats in both AR and 3D modes. This intuitive tool supports local and cloud documents, custom backgrounds, and shadow casting. Easily import models via multiple methods and share your creations.
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.
View, convert, and print CAD drawings on your mobile device. Supports DWG, DXF, and PDF formats with iCloud sync and Wi-Fi printing. Ideal for architects, engineers, and construction professionals.
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.
Bring your app ideas to life quickly by turning sketches and mockups into interactive prototypes. Easily design, link screens, and share your app demos on various devices. Perfect for visualizing and testing new concepts.
View and inspect complex 3D models with ease. This advanced viewer supports numerous standard 3D file formats and offers intuitive navigation for detailed examination of scanned objects.
Easily view and convert a wide range of 3D model file formats. Offers graphic manipulation tools, rendering options, and detailed model information. Supports loading from compressed archives.
Easily view and interact with 3D models in various formats like USDZ, STL, and OBJ. Explore your designs with intuitive gestures, high-performance rendering, and augmented reality capabilities. Record animations of your models for sharing.
View and interact with a wide range of 2D and 3D model formats. Explore models, play animations, and save screenshots. Supports various file types including glTF, X3D, and OBJ, with options to open ZIP archives containing models and textures.