Comparison

Autodesk Fusion 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

Autodesk Fusion

Collaborate on 3D designs from anywhere with this mobile app. View, comment on, and share CAD models in over 100 formats. It works with a companion cloud-based desktop product for product design and development.

Highlights
  • View over 100 file formats
  • Collaborate on 3D designs
  • Comment on project activities
  • Share designs with stakeholders
  • Search and highlight parts
  • Offline data access
Read full description

Autodesk Fusion™ for iPhone and iPad lets you collaborate on 3D designs with anyone inside or outside your company. With the Fusion app, you have the flexibility to view and collaborate on your Fusion CAD models—anytime, anywhere. The app supports more than 100 file formats including DWG, SLDPRT, IPT, IAM, CATPART,IGES, STEP, STL, making it easy to share designs with your team, clients, partners, and friends. The free app works in conjunction with its companion cloud-based desktop product, Autodesk Fusion™, a 3D CAD, CAM, and CAE tool for product design and development. * To use Fusion for iPhone and iPad, you will need to sign in with your Fusion account information. FEATURES View • Upload and view more than 100 data formats including SLDPRT, SAT, IGES, STEP, STL, OBJ, DWG, F3D, SMT, and DFX • View and track project activities and updates • Review large and small 3D designs and assemblies • Access design properties and complete parts lists • Isolate and hide components in the model for easy viewing • Navigate by touch with zoom, pan, and rotate Comment • Upload photos to share info or report project status • Comment on project activities Share • Share with stakeholders inside and outside your company • Share screenshots of the design with markups directly from the app Search • Search for parts in the model and see them automatically highlighted in the design SUPPORT: https://knowledge.autodesk.com/contact-support Optional Access + Storage: Store offline data if needed, so you can view your data anywhere, anytime + Photos: Access files or data stored on your device to view, share and markup + Camera: Take pictures such as drawings with app Fusion will still function even if a user does not give permissions to access these functions.

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

Autodesk Fusion3 screens
STL Viewer · Model File Reader3 screens

Verdict

The call

The clearest difference is review sentiment: Autodesk Fusion at 60% against STL Viewer · Model File Reader's 0%. Autodesk Fusion also leads on in-app purchases (none vs 3) and ads (none vs shown). STL Viewer · Model File Reader's advantage is rating (5.0 vs 4.5) and update cadence (every 2 weeks vs monthly). 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 Viewer · Model File Reader sells 3 in-app purchases, starting at $1.99 per 7 days. Autodesk Fusion asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

STL Viewer · Model File Reader holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Autodesk Fusion has 4.1K ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 60% of Autodesk Fusion's written reviews are positive against 0% of STL Viewer · Model File Reader's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Autodesk Fusion ships an update monthly, STL Viewer · Model File Reader every 2 weeks. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

Scorecard8 real differences · 2 level
Autodesk Fusion versus STL Viewer · Model File Reader: the parameters behind the verdict, then further details
ParameterAutodesk FusionSTL Viewer · Model File Reader
PriceFreeFree
Rating4.5 (4.1K ratings)5.0 (2 ratings) — better
Positive reviews59.8% of reviews — better0.0% of reviews
Number of ratings4.1K — better2
Update frequencyMonthlyEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS13 — better15.0
Further details — not scored
Size124 MB31 MB
Age rating4+4+
DeveloperAutodesk Inc.OMER FARUK KIZILTUG

Customer experience

Autodesk Fusion

All ratings4,095 ratings
Positive89.4%
Neutral2.2%
Negative8.4%
Written reviews801 reviews
Positive59.8%
Neutral9.2%
Negative31.0%

STL Viewer · Model File Reader

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

Bugs and requests

Autodesk Fusion

Reported bugs

4 issues
  • Fails to open files
  • White screens and rendering issues
  • Inconsistent behavior across devices
  • Frequent crashes on latest iOS versions

Requested features

4 requests
  • Full editing capabilities on iPad
  • Ability to hide/show components
  • Improved rendering and visualization
  • Offline access and file management

STL Viewer · Model File Reader

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Autodesk Fusion

No in-app purchases

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 Autodesk Fusion free?
Autodesk Fusion is free to download, with no in-app purchases.
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, Autodesk Fusion or STL Viewer · Model File Reader?
STL Viewer · Model File Reader is rated higher. Autodesk Fusion averages 4.5 out of 5 from 4.1K ratings, while STL Viewer · Model File Reader averages 5.0 from 2 ratings.
Do Autodesk Fusion or STL Viewer · Model File Reader have ads?
STL Viewer · Model File Reader shows ads; Autodesk Fusion does not.
Which is updated more often, Autodesk Fusion or STL Viewer · Model File Reader?
Autodesk Fusion ships an update monthly, and STL Viewer · Model File Reader every 2 weeks. Most recently, Autodesk Fusion was updated on October 31, 2026 and STL Viewer · Model File Reader on October 28, 2026.

Other comparisons