Comparison

STL Simple Viewer vs stl

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

Head to head
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
Read full description

STL Simple Viewer is a great app to quickly view 3D STL & 3MF files and export them to the most commonly used CAD formats. Features: - Supports STL files both ASCII and Binary formats. - Supports 3MF files. - Load STL and 3MF files directly from ZIP archives. - Export to DXF, OBJ, DAE, PLY and USD. - Rotate, pan, and zoom models with intuitive touch controls. - Measure distances between points within your model. - 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

About

stl

Features
Read full description

stl-er is the world's first AI-powered 3D model generator built for 3D printing. Simply describe any object in plain text — and get a fully parametric, functional 3D model in seconds. No CAD experience needed. HOW IT WORKS 1. Describe what you want (e.g., "phone stand with cable slot") 2. AI generates a precise 3D model using CAD 3. Adjust dimensions with live parameter sliders 4. Download the STL file — ready for your 3D printer KEY FEATURES • AI-Powered Generation — From text prompt to 3D model in seconds • Live Parameter Sliders — Fine-tune dimensions, rounding, and details in real-time • AI Refinement — Modify designs with follow-up prompts ("make it taller", "add ventilation holes") • Instant STL Downloads — Export files ready for any 3D printer or slicer • 3D Preview — Rotate and inspect your model before downloading • Community Library — Browse, remix, and share models created by other makers • Cross-Platform — Seamlessly sync between iPhone, iPad, and Web PERFECT FOR • 3D printing enthusiasts and makers • DIY builders and hobbyists • Product designers and engineers • Educators and students • Anyone who wants custom 3D models without learning CAD software WHY stl-er? Traditional CAD software has a steep learning curve. AI model generators produce meshes that aren't optimized for printing. stl-er combines the precision of parametric CAD with the simplicity of natural language — every model is mathematically exact, fully customizable, and ready to print. Every design is solid, manifold, and slicer-ready. Start creating. Now. Terms of Use: https://www.stl-er.com/terms-conditions/ Privacy Policy: https://www.stl-er.com/privacy-policy/

Screenshots

STL Simple Viewer4 screens
stl4 screens

Verdict

The call

The clearest difference is ads: stl at none against STL Simple Viewer's shown. stl also leads on iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support 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. STL Simple Viewer sells 4 in-app purchases, starting at $0.99 per 7 days and stl sells 5 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences · 8 level
STL Simple Viewer versus stl: the parameters behind the verdict, then further details
ParameterSTL Simple Viewerstl
PriceFreeFree
Rating4.3 (866 ratings) — better—
Positive reviews17.2% of reviews—
Number of ratings866 — better—
Update frequencyEvery 20 months—
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size19 MB84 MB
Age rating+44+
DeveloperVictor BovioTHOMAS CHRISTIAN HAGNAUER

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

stl

Not enough reviews yet to summarise bugs or requests.

In-app purchases

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 to OBJ, DAE, DXF, PLY$3.99
5 purchases

stl

Subscriptions4
  • Premium — 100 AI Models/mo$5.991 Month
  • Pro — 500 AI Models/mo$15.991 Month
  • Premium — 100 AI Models/mo$59.991 Year
Show 1 more
  • Pro — 500 AI Models/mo$159.991 Year
One-time1
  • Pro Credit Top-Up$15.99

Questions

Is STL Simple Viewer free?
STL Simple Viewer is free to download, with in-app purchases available.
Is stl free?
stl is free to download, with in-app purchases available.
Do STL Simple Viewer or stl have ads?
STL Simple Viewer shows ads; stl does not.

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