Comparison

STL Simple Viewer vs GLB File Viewer

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

GLB File Viewer

Features
Read full description

GLB Viewer opens GLB and GLTF 3D models instantly on your phone - no heavy desktop software needed. Everything is free. There are no in-app purchases. Credits only skip the ad; without credits you can still open every file after watching a short ad. Key features * Open .glb and .gltf files straight from your file manager - just tap the file * Measure your model: a bounding box with all three side lengths, in mm or m * Smooth controls: pinch to zoom, pan and rotate, and switch between six fixed views * Works offline - your files never leave your device * Light and fast: opens in seconds, even on modest phones * Available in 12 languages, following your device settings Made for * 3D artists and designers showing work to clients on the go * Developers and project managers reviewing assets quickly * 3D printing hobbyists checking models before printing * Students and anyone learning 3D Download GLB Viewer and carry your 3D models in your pocket.

Screenshots

STL Simple Viewer4 screens
GLB File Viewer4 screens

Verdict

The call

The clearest difference is in-app purchases: GLB File Viewer at none against STL Simple Viewer's 4. GLB File Viewer also leads on ads (none vs shown) and update cadence (fortnightly vs every 20 months). On price 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. GLB File Viewer asks for nothing beyond the download.

UpkeepUpdate frequency

STL Simple Viewer ships an update every 20 months, GLB File Viewer fortnightly. The most recent releases landed on September 23, 2026 and September 2, 2026 respectively.

Scorecard4 real differences · 6 level
STL Simple Viewer versus GLB File Viewer: the parameters behind the verdict, then further details
ParameterSTL Simple ViewerGLB File Viewer
PriceFreeFree
Rating4.3 (866 ratings) — better—
Positive reviews17.2% of reviews—
Number of ratings866 — better—
Update frequencyEvery 20 monthsFortnightly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size19 MB30 MB
Age rating+44+
DeveloperVictor BovioSmart Cube Labs Co., Ltd.

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

GLB File Viewer

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

GLB File Viewer

No in-app purchases

Questions

Is STL Simple Viewer free?
STL Simple Viewer is free to download, with in-app purchases available.
Is GLB File Viewer free?
GLB File Viewer is free to download, with no in-app purchases.
Do STL Simple Viewer or GLB File Viewer have ads?
STL Simple Viewer shows ads; GLB File Viewer does not.
Which is updated more often, STL Simple Viewer or GLB File Viewer?
STL Simple Viewer ships an update every 20 months, and GLB File Viewer fortnightly. Most recently, STL Simple Viewer was updated on September 23, 2026 and GLB File Viewer on September 2, 2026.

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