Comparison

3D Model 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

3D Model Viewer

Easily view and interact with 3D models in various formats like USDZ, STL, and OBJ. Explore your designs with intuitive gestures, high-performance rendering, and augmented reality capabilities. Record animations of your models for sharing.

Highlights
  • View USDZ, STL, OBJ, PLY files
  • Intuitive gesture controls
  • High-performance rendering
  • Augmented Reality (AR) visualization
  • Record rotation animations
  • Supports OBJ with textures
Read full description

3D Model Viewer: STL & USDZ - Transform Your Experience with 3D Visualization! Key Features: - Seamless Viewing: Effortlessly open and explore .usdz, .usd, .obj, .stl, .ply files with stunning clarity and detail. Experience 3D models like never before! - User-Friendly Interface: Navigate through your 3D models with simple gestures. Rotate, zoom and pan. - High Performance: Enjoy smooth and fast rendering, ensuring an optimal viewing experience for complex models. - AR Viewer: Visualize your models in AR. - Record: Record the scene with a rotation animation. You can upload .obj with textures, you need to create a zip file with the textures and the .mtl file. Download 3D Model Viewer: STL & USDZ today and step into the future of 3D visualization! Transform the way you see and share your creative ideas. Payment will be charged to your Apple ID account at the confirmation of purchase. The subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your App Store account settings after purchase. - Terms & conditions https://sites.google.com/view/usdz3dviewer/home/termsandconditions

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

3D Model Viewer4 screens
STL Viewer · Model File Reader3 screens

Verdict

The call

The clearest difference is rating: STL Viewer · Model File Reader at 5.0 against 3D Model Viewer's 3.5. STL Viewer · Model File Reader also leads on device support (4 vs 2) and iOS requirement (15.0 vs 17.0). 3D Model Viewer's advantage is ads (none vs shown) and ratings volume (11 vs 2). On price, review sentiment, update cadence and in-app purchases 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. 3D Model Viewer sells 4 in-app purchases, starting at $2.99 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.

ReceptionRating · Positive reviews · Number of ratings

STL Viewer · Model File Reader holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: 3D Model Viewer has 11 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 0% and 0% positive.

UpkeepUpdate frequency

3D Model Viewer ships an update weekly, STL Viewer · Model File Reader every 2 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
3D Model Viewer versus STL Viewer · Model File Reader: the parameters behind the verdict, then further details
Parameter3D Model ViewerSTL Viewer · Model File Reader
PriceFreeFree
Rating3.5 (11 ratings)5.0 (2 ratings) — better
Positive reviews0.0% of reviews0.0% of reviews
Number of ratings11 — better2
Update frequencyWeekly — betterEvery 2 weeks
AdsNo — betterYes
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
Size15 MB31 MB
Age rating4+4+
DeveloperAriel OrtizOMER FARUK KIZILTUG

Customer experience

3D Model Viewer

All ratings11 ratings
Positive63.6%
Neutral0.0%
Negative36.4%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

STL Viewer · Model File Reader

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

4 purchases

3D Model Viewer

Subscriptions3
  • All Access$2.997 Days
  • All Access3 Days trial$3.991 Month
  • All Access$14.991 Year
One-time1
  • One-time payment$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 3D Model Viewer free?
3D Model 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.
Which has better reviews, 3D Model Viewer or STL Viewer · Model File Reader?
STL Viewer · Model File Reader is rated higher. 3D Model Viewer averages 3.5 out of 5 from 11 ratings, while STL Viewer · Model File Reader averages 5.0 from 2 ratings.
Do 3D Model Viewer or STL Viewer · Model File Reader have ads?
STL Viewer · Model File Reader shows ads; 3D Model Viewer does not.
Which is updated more often, 3D Model Viewer or STL Viewer · Model File Reader?
3D Model Viewer ships an update weekly, and STL Viewer · Model File Reader every 2 weeks. Most recently, 3D Model Viewer was updated on November 3, 2026 and STL Viewer · Model File Reader on October 31, 2026.

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