STEP File Viewer
维 艾 Developer Tools iPhoneiPadiPod touchMac
STEP File Viewer is a free Developer Tools app for iPhone and iPad by 维 艾. Rated 3.4/5 from 7 ratings. Requires iOS 16.0. Updated October 11, 2026.
- Rating
- 3.4
- 7 ratings
- Price
- Free
- on the App Store
- Size
- 33 MB
- Age 4+
- Updated
- Oct 11
- 2026 · v1.1.1
Screenshots
About STEP File Viewer
STEP File Viewer is a lightweight yet powerful tool for viewing .step and .stp files on macOS, iPad, and iPhone. Key Features • View STEP models in 3D with rotate, pan, and zoom controls using perspective projection. • Display 3D models in solid, shaded, or wireframe modes. • Load and view IGES/IGS models. • Supports assembly-level colors and exploded views (requires the model to include assembly data). • Parse and load STEP models as assemblies • Support PMI annotations, dimension details, and model information panels in AP242 models for easier design review. • Measure auto-detected hole features, bounding box dimensions, point-to-point distances, diameter/radius, and angles to verify key dimensions more quickly. • Pin review notes on the model to record issues, jump back to each note’s viewpoint, and export a review report as PDF with screenshots. • Apply axis-aligned section planes (XY, XZ, YZ) to reveal the model’s internal geometry. • Explode model components to inspect the parts clearly in expanded space, with the ability to export selected parts as separate files. • Export 3D models in STL, OBJ, glTF, GLB, or USDZ formats for further use or sharing. • Capture high-quality viewport screenshots for easy sharing. • No ads. No tracking. No data collection. Just a clean, efficient tool built for productivity. The STEP format (ISO 10303) is widely supported by 3D CAD, CAM, CAE, and PLM applications. Recommended For: • Engineers & Designers: Review designs on the shop floor or during client meetings. • Machinists & CNC Operators: Quickly verify part geometry before production. • 3D Printing Enthusiasts: Easily convert professional STEP files to STL for slicing. • Students & Educators: Visualize complex structures without expensive CAD licenses. Pricing & Access • Free: Load and view unlimited STEP models. • Subscription: Unlimited access to all features. A single subscription covers macOS, iPhone, and iPad. • Individual Unlocks: Get exactly what you need with one-time purchases for specific features—no subscription required. • Payment is charged to your App Store account. • Auto-renews unless turned off at least 24 hours before the current period ends. • Manage your subscriptions in the App Store settings. Privacy & Purchase Terms • Privacy Policy: https://apps.h53d.xyz/apps/step-file-viewer/policy.html • Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Have questions or need support? Reach out to [email protected].
Ratings & reviews
3.4
7 ratings
What’s new
Version 1.1.1 · Updated October 11, 2026
• Improved task handling during startup, when opening models in succession, and when cancelling operations for more stable model loading. • Reduced memory usage during large file exports and improved saving and sharing. • File import and export on iPhone / iPad: confirmation is required above 50 MiB; operations are blocked above 100 MiB. • File import and export on Mac: confirmation is required above 100 MiB; operations are blocked above 200 MiB.
App privacy
The developer, 维 艾, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| STEP File Viewer | 3.4 / 5 (7 ratings) | Free | October 11, 2026 | |
| FlareKit for Cloudflare | 5.0 / 5 (7) | Free | Jul 10, 2026 | Compare |
| 3D & STL Model Viewer - Mes3D | 4.7 / 5 (22) | Free | Oct 22, 2026 | Compare |
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| Coupon Distributor | 5.0 / 5 (2) | Free | Sep 27, 2026 | Compare |
| STL File Viewer Pro | 4.5 / 5 (81) | Free | Jul 9, 2026 | Compare |
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