Comparison

STL Simple Viewer vs BST Scanner

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

BST Scanner

Utilize your device's camera or laser to scan barcodes found on the BST Apps website. This tool streamlines the process of accessing product information directly from the site.

Highlights
  • Scan barcodes using camera
  • Scan barcodes using laser
  • Access product information
  • Integrates with BST Apps website
Read full description

This app allows you to use a laser or camera to scan barcodes printed on the BST Apps website

Screenshots

STL Simple Viewer4 screens
BST Scanner4 screens

Verdict

The call

The clearest difference is review sentiment: BST Scanner at 100% against STL Simple Viewer's 17%. BST Scanner also leads on in-app purchases (none vs 4) and ads (none vs shown). On price, update cadence 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. BST Scanner asks for nothing beyond the download.

UpkeepUpdate frequency

STL Simple Viewer ships an update every 20 months, BST Scanner every 24 months. The most recent releases landed on September 26, 2026 and September 18, 2026 respectively.

Scorecard5 real differences · 5 level
STL Simple Viewer versus BST Scanner: the parameters behind the verdict, then further details
ParameterSTL Simple ViewerBST Scanner
PriceFreeFree
Rating4.3 (866 ratings) — better—
Positive reviews17.2% of reviews100.0% of reviews — better
Number of ratings866 — better—
Update frequencyEvery 20 months — betterEvery 24 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size19 MB23 MB
Age rating+417+
DeveloperVictor BovioBrad Taylor

Customer experience

STL Simple Viewer

All ratings866 ratings
Positive80.4%
Neutral4.5%
Negative15.1%
Written reviews157 reviews
Positive17.2%
Neutral10.8%
Negative72.0%

BST Scanner

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

BST Scanner

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
None

BST Scanner

No in-app purchases

Questions

Is STL Simple Viewer free?
STL Simple Viewer is free to download, with in-app purchases available.
Is BST Scanner free?
BST Scanner is free to download, with no in-app purchases.
Do STL Simple Viewer or BST Scanner have ads?
STL Simple Viewer shows ads; BST Scanner does not.
Which is updated more often, STL Simple Viewer or BST Scanner?
STL Simple Viewer ships an update every 20 months, and BST Scanner every 24 months. Most recently, STL Simple Viewer was updated on September 26, 2026 and BST Scanner on September 18, 2026.

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