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CAD · head to head

Alibre Design vs Zoo

Alibre Design logo

Alibre Design

CAD

Affordable professional CAD

From
On request
Rated
-
Full reviewWebsite
Zoo logo

Zoo

CAD

Cloud CAD with a scripting language and a geometry engine exposed as an API

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Zoo has a free tier, so it costs nothing to try first.
  • Each has a real cost: Alibre Design perpetual licences do not include updates; maintenance is a separate yearly plan starting at $50 per year for CAD support and updates; Zoo the geometry engine runs entirely in Zoo's cloud and there is no offline mode, so an aircraft, a customer site with no guest wifi or an outage stops modelling work completely.
  • They diverge on capability: Alibre Design covers Parametric modeling, Zoo covers KCL scripting.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Alibre Design and Zoo actually diverge.

Attributes where Alibre Design and Zoo differ
AttributeAlibre DesignZoo
Starting priceOn requestFree
Pricing modelone-timePer user per month
Free tierNoYes
PlatformsWindowsWeb, Windows, macOS, Linux, API
Founded1997Unknown

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 Alibre Design

  • Parametric modeling
  • Assemblies
  • Sheet metal
  • 2D drawings
  • BOM
  • Rendering
  • CAM software
  • PDM

Only in Zoo

  • KCL scripting
  • Design Studio
  • Design API
  • Zookeeper agent
  • Format conversion
  • Open source client

What people use each for

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

Alibre Design

  • Parametric 3D solid modelling for mechanical partsnot Zoo
  • Producing 2D manufacturing drawings from 3D modelsnot Zoo
  • Designing parts for 3D printing and small shop machiningnot Zoo

Zoo

  • A hardware startup that wants part models reviewed in pull requests alongside firmwarenot Alibre Design
  • A software team generating thousands of parametric part variants programmatically rather than by handnot Alibre Design
  • A SaaS product that needs to render and convert customer CAD files without licensing a geometry kernelnot Alibre Design
  • An engineer who models occasional brackets and enclosures and does not want a four figure annual seatnot Alibre Design

Where each one falls short

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

Alibre Design

  • Perpetual licences do not include updates; maintenance is a separate yearly plan starting at $50 per year for CAD support and updates
  • Sheet metal, PDM data management and rendering are Design Expert only at $1,999
  • Scripting is excluded from the $199 Atom3D edition
  • CAM capability is sold as separate EZ-Mill, EZ-Turn and EZ-EDM products costing up to $2,999
  • A dedicated account manager is excluded from Atom3D

Zoo

  • The geometry engine runs entirely in Zoo's cloud and there is no offline mode, so an aircraft, a customer site with no guest wifi or an outage stops modelling work completely.
  • STEP and SLDPRT import are still labelled experimental, which means the most common way of receiving a supplier or customer model is the least reliable path into the tool.
  • Drawing production, GD&T and tolerance annotation are far behind SolidWorks, Creo and NX, so most users still need a second package to release a manufacturing drawing.
  • Zookeeper is billed in reasoning minutes rather than per seat, so a team cannot forecast next month's bill from headcount the way it can with conventional CAD subscriptions.
  • The open source label applies only to the Design Studio client; the kernel that does the modelling is closed and hosted, so forking the repository does not give you a product you can run yourself.

Pricing, plan by plan

Alibre Design

On request
  • Atom3D Lifetime License$125/mo
  • Design Pro Lifetime License$630/mo
  • Design Expert Lifetime License$1260/mo
  • Design Pro Monthly$99.9/month

Zoo

Free
  • FreeFree
    • Design Studio access
    • About 20 minutes of Zookeeper reasoning per month
    • Around $10 of API calls included
  • Plus$20/month
    • Roughly 400 Zookeeper minutes per month
    • Pay as you go beyond the allowance
    • Design Studio and API access
  • Pro$99/month
    • Unlimited Zookeeper reasoning
    • Higher API allowance
    • Priority support

Which should you pick?

Choose Alibre Design if

  • You need parametric modeling.
  • You work on Windows.
  • You also want assemblies.
Alibre Design review

Choose Zoo if

  • You need kcl scripting.
  • You want to start without paying.
  • You work on Web, Windows, macOS, Linux, API.
  • You also want design studio.
Zoo review

Questions people ask

Is Alibre Design or Zoo better?
Neither clearly leads. Alibre Design starts at On request and Zoo at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Alibre Design or Zoo?
Zoo has a free tier; the other does not. Paid plans start at On request for Alibre Design and Free for Zoo.
Does Alibre Design or Zoo run on more platforms?
Alibre Design runs on Windows. Zoo runs on Web, Windows, macOS, Linux, API.
Can I use Zoo for free?
Yes. Zoo has a free tier, so you can try it without paying. Alibre Design starts at On request.
What is Alibre Design best used for?
Alibre Design is most often used for parametric 3d solid modelling for mechanical parts, producing 2d manufacturing drawings from 3d models, designing parts for 3d printing and small shop machining. Of those, parametric 3d solid modelling for mechanical parts and producing 2d manufacturing drawings from 3d models are not what Zoo is typically brought in for.
What can Alibre Design do that Zoo cannot?
Alibre Design covers Parametric modeling, Assemblies, Sheet metal, 2D drawings. Zoo covers KCL scripting, Design Studio, Design API, Zookeeper agent.

Answered from the vendors’ own pages

Alibre Design: Does Alibre Design require a subscription or is it a one-time purchase?

Alibre Design offers one-time lifetime licenses or monthly payment plans. Atom3D lifetime is $125, Design Pro is $630, and Design Expert is $1,260. Monthly payment plans spread costs over 10 months.

Source
Zoo: Is Zoo the same company as KittyCAD?

Yes. KittyCAD renamed itself Zoo; the GitHub organisation is still KittyCAD and the scripting language KCL keeps the old initials.

Alibre Design: What is the difference between Alibre Design Pro and Design Expert?

Design Expert ($1,260) is the complete design suite with advanced features, while Design Pro ($630) is the entry-level professional 3D/2D CAD software.

Source
Zoo: Can I use Zoo without an internet connection?

No. The geometry engine is a cloud service, so Design Studio needs a live connection to model anything.

Alibre Design: Do I need to pay separately for software updates and support in Alibre?

Yes. Annual support and update plans cost $50 per year for CAD software and $100-$200 per year for mill and turn add-ons.

Source
Zoo: Is Design Studio free?

There is a genuine free tier with a small monthly allowance of AI reasoning and API calls. Paid plans start at $20 per month.

Zoo: Can I replace SolidWorks with Zoo?

Not for drawing release, large assemblies or GD&T. Teams typically use Zoo for programmatic part generation and keep an established package for production documentation.

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