Comparison

STL Simple Viewer vs STL Viewer · Model File Reader

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 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

About

STL Viewer · Model File Reader

Quickly view and interact with 3D model files. Rotate, zoom, and project models into your environment using augmented reality. Offers customization options and multi-model support.

Highlights
  • Fast STL file viewing
  • 3D model rotation and zoom
  • Augmented Reality (AR) projection
  • Customizable model and background colors
  • Multi-model support
  • Grid viewer and lighting options
Features
Read full description

View your STL 3D model files at lightning speed. Instantly open even the most complex polygonal structures without delay. Rotate, zoom, change background and model color, multiple models reader, project your model into your home in real life with AR and see its dimensions and color harmony with your environment, grid viewer, lighting and much more. *Note: AR projection, multi models, ad-free and some premium customization features require PRO upgrade. Privacy Policy & Terms of Use (EULA): https://plusapkz.com/stl-viewer-model-file-reader/

Screenshots

STL Simple Viewer4 screens
STL Viewer · Model File Reader3 screens

Verdict

The call

The clearest difference is update cadence: STL Viewer · Model File Reader at every 11 days against STL Simple Viewer's every 5 months. STL Viewer · Model File Reader also leads on device support (4 vs 2) and iOS requirement (15.0 vs 17.0). STL Simple Viewer's advantage is review sentiment (18% vs 0%). On price, ads, 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

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 Viewer · Model File Reader sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

STL Simple Viewer ships an update every 5 months, STL Viewer · Model File Reader every 11 days. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.

Scorecard4 real differences · 6 level
STL Simple Viewer versus STL Viewer · Model File Reader: the parameters behind the verdict, then further details
ParameterSTL Simple ViewerSTL Viewer · Model File Reader
PriceFreeFree
Rating4.3 (909 ratings) — better—
Positive reviews18.1% of reviews — better0.0% of reviews
Number of ratings909 — better—
Update frequencyEvery 5 monthsEvery 11 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS17.015.0 — better
Further details — not scored
Size19 MB30 MB
Age rating4+4+
DeveloperVictor BovioOMER FARUK KIZILTUG

Customer experience

STL Simple Viewer

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

STL Viewer · Model File Reader

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

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

STL Viewer · Model File Reader

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 Pack$3.99
3 purchases

STL Viewer · Model File Reader

Subscriptions3
  • Weekly Premium3 Days trial$1.997 Days
  • Monthly Pro3 Days trial$4.991 Month
  • Yearly Pro$19.991 Year

Questions

Is STL Simple Viewer free?
STL Simple Viewer is free to download, with in-app purchases available.
Is STL Viewer · Model File Reader free?
STL Viewer · Model File Reader is free to download, with in-app purchases available.
Do STL Simple Viewer or STL Viewer · Model File Reader have ads?
Both STL Simple Viewer and STL Viewer · Model File Reader show ads.
Which is updated more often, STL Simple Viewer or STL Viewer · Model File Reader?
STL Simple Viewer ships an update every 5 months, and STL Viewer · Model File Reader every 11 days. Most recently, STL Simple Viewer was updated on October 14, 2026 and STL Viewer · Model File Reader on October 11, 2026.

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