Comparison

Shapr 3D CAD modeling vs STL Simple Viewer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Shapr 3D CAD modeling

This tool offers an intuitive 3D design workflow across multiple devices, enabling seamless collaboration and manufacturing readiness. Its adaptive interface and AR rendering simplify complex modeling for teams and individuals.

Highlights
  • Multidevice and offline capability
  • Adaptive user interface
  • Design-driven collaboration
  • Real-time 3D renders in AR
  • Export/Import support for various formats
  • Output 2D Drawings
Read full description

From design to manufacturing. Teams collaborate with more impact. Instinctive design meets multidevice capability and full interoperability for the ultimate 3D design workflow. All platforms Pick your device and your input tool leveraging the first CAD tool envisioned for multidevice. Hybrid workflow meets cross-functional team processes with automatic sync across devices. Work from any device or offline: design and collaborate at your best, everywhere. Compact tools. Space for focus. An adaptive user interface auto-sorts tools, taking the clutter out of designing. Your focus stays front and center to eliminate clunking around and prioritize high-quality decisions. Design-driven collaboration. Make designing a reflex and visual communication second nature for the whole team. Instinctive CAD meets a visual communication bundle complete with real-time 3D renders in AR, shareable via a link for download-free viewing. Start where you are and finish strong – no expensive hardware needed. Shapr3D combines industrial-grade CAD with a user-friendly experience, including: • Siemens™ geometric Parasolid® modeling kernel and D-Cubed™ sketch engine • Export support for X_T, STEP, STL, OBJ, 2D DXF, 2D DWG, IGES, 3MF, SVG • Import support for SLDPRT, SLDASM, X_T, STEP, STL, IGES, 2D DWG, 2D DXF, JPG, PNG • Output 2D Drawings Get in touch Have a question? Visit our forum: https://discourse.shapr3d.com. For support queries, please submit a request here: https://shapr3d.com/support Terms of Use: https://www.shapr3d.com/terms-of-use Privacy Policy: https://www.shapr3d.com/privacy-policy

About

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.

Highlights
  • 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
Features
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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

Screenshots

Shapr 3D CAD modeling4 screens
STL Simple Viewer4 screens

Verdict

The call

The clearest difference is ads: Shapr 3D CAD modeling at none against STL Simple Viewer's shown. Shapr 3D CAD modeling also leads on review sentiment (52% vs 18%) and rating (4.7 vs 4.3). On price, in-app purchases, monetization model and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Shapr 3D CAD modeling sells 6 in-app purchases, starting at $32.99 per month and STL Simple Viewer sells 4 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Shapr 3D CAD modeling holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: Shapr 3D CAD modeling has 34K ratings behind it against 923, so its average is the more settled of the two. Written reviews point the same way: 52% of Shapr 3D CAD modeling's written reviews are positive against 18% of STL Simple Viewer's.

UpkeepUpdate frequency

Shapr 3D CAD modeling ships an update weekly, STL Simple Viewer every 5 months. The most recent releases landed on November 8, 2026 and November 7, 2026 respectively.

Scorecard6 real differences · 4 level
Shapr 3D CAD modeling versus STL Simple Viewer: the parameters behind the verdict, then further details
ParameterShapr 3D CAD modelingSTL Simple Viewer
PriceFreeFree
Rating4.7 (34K ratings) — better4.3 (923 ratings)
Positive reviews52.4% of reviews — better18.1% of reviews
Number of ratings34K — better923
Update frequencyWeekly — betterEvery 5 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Mac, Vision Pro — betteriPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size1.9 GB19 MB
Age rating4+4+
DeveloperShapr3D ZrtVictor Bovio

Customer experience

Shapr 3D CAD modeling

All ratings34,246 ratings
Positive94.8%
Neutral1.5%
Negative3.6%
Written reviews828 reviews
Positive52.4%
Neutral12.6%
Negative35.0%

STL Simple Viewer

All ratings909 ratings
Positive80.3%
Neutral4.5%
Negative15.2%
Written reviews166 reviews
Positive18.1%
Neutral11.4%
Negative70.5%

User reviews

Shapr 3D CAD modeling

From 34K App Store ratings

What we love

  • 🚀 Super easy to use
  • 👍 Intuitive interface
  • 🚀 Powerful features
  • 👍 Great for beginners
  • 👍 Excellent tutorials

Room to improve

  • 💰 Expensive subscription
  • 💰 Pricing not suitable for hobbyists
  • 🔒 Limited free version
  • 🐛 Occasional bugs and crashes
  • 👎 Navigation and controls could be improved

STL Simple Viewer

From 923 App Store ratings

What we love

  • 🚀 Simple and intuitive viewer
  • 👍 Useful viewing options
  • 💡 Supports multiple file formats

Room to improve

  • 🐛 Frequent crashes
  • 🔋 High battery consumption
  • 🚨 Excessive and intrusive ads
  • 🔍 Limited functionality for larger files

Bugs and requests

Shapr 3D CAD modeling

Reported bugs

3 issues
  • Unreliable performance after recent updates
  • Difficulty deleting or modifying existing designs
  • Inconsistent behavior when using the Apple Pencil

Requested features

6 requests
  • Add more affordable pricing tiers for hobbyists
  • Improve undo/redo functionality
  • Implement better file management and organization
  • Add support for importing/exporting more file formats
  • Enhance parametric modeling capabilities
Show 1 more
  • Introduce a one-time purchase option

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

In-app purchases

6 purchases

Shapr 3D CAD modeling

Subscriptions6
  • Solo Subscription14 Days trial$32.991 Month
  • Pro Subscription14 Days trial$37.991 Month
  • Business Subscription14 Days trial$59.991 Month
Show 3 more
  • Solo Subscription14 Days trial$249.991 Year
  • Pro Subscription14 Days trial$299.991 Year
  • Business Subscription14 Days trial$499.991 Year
4 purchases

STL Simple Viewer

Subscriptions2
  • Pro version (1 week plan)$0.997 Days
  • Pro version (1 month plan)3 Days trial$1.991 Month
One-time2
  • Remove Ads$2.99
  • Export Pack$3.99

Questions

Is Shapr 3D CAD modeling free?
Shapr 3D CAD modeling is free to download, with in-app purchases available.
Is STL Simple Viewer free?
STL Simple Viewer is free to download, with in-app purchases available.
Which has better reviews, Shapr 3D CAD modeling or STL Simple Viewer?
Shapr 3D CAD modeling is rated higher. Shapr 3D CAD modeling averages 4.7 out of 5 from 34K ratings, while STL Simple Viewer averages 4.3 from 923 ratings.
Do Shapr 3D CAD modeling or STL Simple Viewer have ads?
STL Simple Viewer shows ads; Shapr 3D CAD modeling does not.
Which is updated more often, Shapr 3D CAD modeling or STL Simple Viewer?
Shapr 3D CAD modeling ships an update weekly, and STL Simple Viewer every 5 months. Most recently, Shapr 3D CAD modeling was updated on November 8, 2026 and STL Simple Viewer on November 7, 2026.

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