STL Simple Viewer vs CAD FastView
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
STL Simple Viewer
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.
- View ASCII and Binary STL files
- Load STL from ZIP
- Rotate, pan, and zoom
- Orthogonal and Perspective modes
- Model info (triangle count, bounding box)
- Rendering options (faces, edges, transparency)
- Clipping plane for interiors
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STL Simple Viewer is a great app to quickly view STL, 3MF & DXF 3D files and export them to the most commonly used CAD formats. Features: - Supports STL files both ASCII and Binary formats. - Supports 3MF & DXF files. - Load files directly from ZIP archives. - Export to DXF, OBJ, DAE, PLY, USD, STL & 3MF. - Measure distances between points within your model. - Rotate, pan, and zoom models with intuitive touch controls. - Configure rendering options: faces, edges, points, background and transparency. - Render using a clipping plane (useful for viewing model interiors). - View models in Orthographic or Perspective mode. - Obtain model information including triangle count, bounding box, surface area, and volume. Privacy Policy: https://www.boviosoft.com/apps/privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ For support or questions: support@boviosoft.com
CAD FastView
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.
- Fast DWG/DXF viewing
- Convert drawings to PDF
- Wi-Fi printing
- iCloud synchronization
- Layer layout management
- Multiple viewing options
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CAD FastView is a multifunctional CAD drawing viewer and sharing app that supports a wide range of CAD formats. It lets you quickly open and view CAD drawings in formats such as DWG, DXF, DWT, DWS, DWF, STEP, STL, IFC, IGES, BREP, FCStd and more. It also supports opening 3D file formats including OBJ, FBX, GLTF, GLB, 3DS and DAE with 2D projection viewing. You can also convert CAD drawings to PDF, print drawings, sync files with iCloud, and manage your drawings with ease. Used by millions of professionals worldwide, including architects, engineers, construction specialists, field technicians, and contractors from various industries. Whether it's mechanical drafting, electrical design, civil engineering, or interior decoration, CAD FastView can handle it all effortlessly! Committed to creating a mobile product that satisfies CAD users globally, CAD FastView provides users with high-quality products and services and continually improves product quality while developing more practical features. ---------------------------------- [Core Features] 1. Wide CAD Format Support: - CAD Formats: Supports DWG, DXF, DWT, DWS, DWF, STEP, STL, IFC, IGES, BREP, FCStd & more. - 3D Formats: Open OBJ, FBX, GLTF, GLB, 3DS, DAE & more with 2D projection viewing. Easily import and open CAD files from Files, other apps, or transfer them via Wi-Fi. 2. Perfect High-Definition Display: Enjoy lossless zoom capabilities to view fine details. It automatically matches thousands of fonts to eliminate missing character or text encoding issues. Provides layer layout management and multiple viewing background modes. 3. One-Click iCloud Sync: Seamlessly sync your drawings to iCloud and access them across your iPhone, iPad, and Mac computers. Check the latest blueprints on your mobile device directly at the construction site. 4. CAD to PDF Conversion: Convert CAD drawings to high-definition PDF files with just one click. Easily share via social media or email, making team communication barrier-free. ---------------------------------- [Premium Member Benefits] - Import drawings unlimited times; - Unlimited high-definition viewing; - Unlimited CAD to PDF conversion; - Enjoy permanent pop-up ads; - Access to all premium features. Subscription Details: Subscription periods: One week, One month, One year. Payment: Payment will be charged directly to your iTunes account upon confirmation of purchase. Cancel renewal: To cancel the renewal, please manually turn off the auto-renewal feature in your iTunes/Apple ID settings at least 24 hours before the current subscription period expires. Renewal: Your Apple iTunes account will be charged within 24 hours prior to expiration. Upon successful payment, the subscription will be extended by one period. Free Trial: Any unused portion of a free trial period will be forfeited when the user purchases a subscription. Privacy Policy: https://www.cadview.cn/privacy_policy.html User Agreement: https://www.cadview.cn/user_agreement.html Subscription Terms: https://www.cadview.cn/SubscriptionTerms.html
Screenshots
Verdict
STL Simple Viewer and CAD FastView both sit at 4.3 stars, but that hides the real split: 54% of CAD FastView's written reviews are positive against 18% of STL Simple Viewer's. CAD FastView also leads on ads (none vs shown) and update cadence (fortnightly vs every 5 months). STL Simple Viewer's advantage is ratings volume (920 vs 56). On price, rating, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. STL Simple Viewer sells 4 in-app purchases, starting at $0.99 per 7 days and CAD FastView sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.3 for STL Simple Viewer against 4.1 for CAD FastView. That said, the two scores are not equally well evidenced: STL Simple Viewer has 920 ratings behind it against 56, so its average is the more settled of the two. Written reviews are what separate them: 18% of STL Simple Viewer's written reviews are positive against 54% of CAD FastView's.
STL Simple Viewer ships an update every 5 months, CAD FastView fortnightly. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.
| Parameter | STL Simple Viewer | CAD FastView |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (920 ratings) — better | 4.1 (56 ratings) |
| Positive reviews | 18.1% of reviews | 54.2% of reviews — better |
| Number of ratings | 920 — better | 56 |
| Update frequency | Every 5 months | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 19 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Victor Bovio | 镇源 余 |
Customer experience
STL Simple Viewer
CAD FastView
Bugs and requests
STL Simple Viewer
Reported bugs
3 issues- App crashes when opening larger STL files
- Inability to open some file formats
- Ads continue to appear even after paying for ad removal
Requested features
3 requests- Add ability to save color/lighting settings
- Improve stability and reduce crashes
- Provide an ad-free paid version
CAD FastView
Not enough reviews yet to summarise bugs or requests.
In-app purchases
STL Simple Viewer
- Pro version (1 week plan)$0.997 Days
- Pro version (1 month plan)3 Days trial$1.991 Month
- Remove Ads$2.99
- Export Pack$3.99
CAD FastView
- Weekly3 Days trial$6.997 Days
- Monthly3 Days trial$12.991 Month
- Yearly3 Days trial$29.991 Year
Questions
Is STL Simple Viewer free?
Is CAD FastView free?
Which has better reviews, STL Simple Viewer or CAD FastView?
Do STL Simple Viewer or CAD FastView have ads?
Which is updated more often, STL Simple Viewer or CAD FastView?
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