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CAD · head to head

Inventor vs PrusaSlicer

Inventor logo

Inventor

CAD

Professional-grade 3D mechanical design

From
$29/month
Rated
-
Full reviewWebsite
PrusaSlicer logo

PrusaSlicer

CAD

Feature-rich 3D printing slicer

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only PrusaSlicer has a free tier, so it costs nothing to try first.
  • Each has a real cost: Inventor pricing shown as template variables on the page, suggesting dynamic or region-specific pricing; PrusaSlicer limited to slicing workflow only; no interactive 3D design capabilities
  • They diverge on capability: Inventor covers Parametric modeling, PrusaSlicer covers Automatic supports.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Inventor and PrusaSlicer actually diverge.

Attributes where Inventor and PrusaSlicer differ
AttributeInventorPrusaSlicer
Starting price$29/monthFree
Pricing modelsubscriptionfree
Free tierNoYes
PlatformsWindowsWindows, macOS, Linux
Founded19822012

Identical on both: user rating (Not yet rated), category (CAD).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Inventor

  • Parametric modeling
  • Assembly design
  • Sheet metal
  • Simulation
  • Rendering
  • Technical documentation
  • Frame generator
  • AutoCAD

Only in PrusaSlicer

  • Automatic supports
  • Multi-material
  • Variable layer height
  • Custom G-code
  • Paint-on supports
  • Ironing
  • Prusa printers
  • Most FDM printers

Both cover

  • Windows support

What people use each for

The jobs each tool is most often brought in to do.

Inventor

  • Mechanical designnot PrusaSlicer
  • Product developmentnot PrusaSlicer
  • Manufacturing documentationnot PrusaSlicer

PrusaSlicer

  • Preparation of STL models for 3D printingnot Inventor
  • Multi-material printing preparationnot Inventor
  • G-code generation and customisation via macrosnot Inventor

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Inventor

  • Pricing shown as template variables on the page, suggesting dynamic or region-specific pricing
  • No clear pricing information readily available on the overview page

PrusaSlicer

  • Limited to slicing workflow only; no interactive 3D design capabilities
  • Designed for RepRap-based printers; compatibility with other printer architectures varies

Pricing, plan by plan

Inventor

$29/month
  • Inventor$2085/month
    • Full mechanical design
    • Simulation
    • Documentation
  • Product Design & Manufacturing Collection$2475/month
    • Inventor + AutoCAD + more

PrusaSlicer

Free

No published plan breakdown. See the PrusaSlicer review.

Which should you pick?

Choose Inventor if

  • You need parametric modeling.
  • You work on Windows.
  • You also want assembly design.
Inventor review

Choose PrusaSlicer if

  • You need automatic supports.
  • You want to start without paying.
  • You work on Windows, macOS, Linux.
  • You also want multi-material.
PrusaSlicer review

Questions people ask

Is Inventor or PrusaSlicer better?
Neither clearly leads. Inventor starts at $29/month and PrusaSlicer at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Inventor or PrusaSlicer?
PrusaSlicer has a free tier; the other does not. Paid plans start at $29/month for Inventor and Free for PrusaSlicer.
Does Inventor or PrusaSlicer run on more platforms?
Inventor runs on Windows. PrusaSlicer runs on Windows, macOS, Linux.
Can I use PrusaSlicer for free?
Yes. PrusaSlicer has a free tier, so you can try it without paying. Inventor starts at $29/month.
What is Inventor best used for?
Inventor is most often used for mechanical design, product development, manufacturing documentation. Of those, mechanical design and product development are not what PrusaSlicer is typically brought in for.
What can Inventor do that PrusaSlicer cannot?
Inventor covers Parametric modeling, Assembly design, Sheet metal, Simulation. PrusaSlicer covers Automatic supports, Multi-material, Variable layer height, Custom G-code. Both handle Windows support.

Answered from the vendors’ own pages

Inventor: How much does Autodesk Inventor cost?

Autodesk Inventor pricing is not displayed on the overview page. Monthly and annual subscription options are available, including single-year and multi-year terms. Customers can access pricing through their Autodesk Account or contact sales.

Source
PrusaSlicer: How much does PrusaSlicer cost?

PrusaSlicer is completely free and open-source software developed by Prusa Research.

Source
Inventor: Is there a free trial for Autodesk Inventor?

Yes, Autodesk offers a 30-day free trial of Inventor. You can start your project and try the software for free during this period.

Source
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