CAD · head to head
D5 Render vs Zoo
Zoo
CAD
Cloud CAD with a scripting language and a geometry engine exposed as an API
- From
- Free
- Rated
- -
The short version
- Each has a real cost: D5 Render windows-only application with no macOS support; 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: D5 Render covers Real-time ray tracing, Zoo covers KCL scripting.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which D5 Render and Zoo actually diverge.
Identical on both: starting price (Free), free tier (Yes), 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 D5 Render
- Real-time ray tracing
- GI
- Asset library
- Video export
- LiveSync
- Geo-location
- SketchUp
- Revit
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.
D5 Render
- Architectural visualizationnot Zoo
- Interior rendersnot Zoo
Zoo
- A hardware startup that wants part models reviewed in pull requests alongside firmwarenot D5 Render
- A software team generating thousands of parametric part variants programmatically rather than by handnot D5 Render
- A SaaS product that needs to render and convert customer CAD files without licensing a geometry kernelnot D5 Render
- An engineer who models occasional brackets and enclosures and does not want a four figure annual seatnot D5 Render
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
D5 Render
- Windows-only application with no macOS support
- Requires dedicated NVIDIA GPU, limiting hardware compatibility
- Community edition restricted to non-commercial use only
- Teams plan at USD 75/seat/month becomes expensive for larger organizations
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
D5 Render
Free- CommunityFree
- Full rendering engine with real-time ray tracing
- Unlimited projects
- High-resolution image and panorama output
- Pro$38/month
- 16K stills and panoramas
- 4K video
- Frame sequence rendering
- Teams$75/month
- All Pro features
- Multi-seat licensing
- Team collaboration
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 D5 Render if
- You need real-time ray tracing.
- You want to start without paying.
- You work on Windows.
- You also want gi.
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.
Questions people ask
- Is D5 Render or Zoo better?
- Neither clearly leads. D5 Render starts at Free and Zoo at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, D5 Render or Zoo?
- D5 Render starts at Free and Zoo at Free.
- Does D5 Render or Zoo run on more platforms?
- D5 Render runs on Windows. Zoo runs on Web, Windows, macOS, Linux, API.
- Can I use D5 Render for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is D5 Render best used for?
- D5 Render is most often used for architectural visualization, interior renders. Of those, architectural visualization and interior renders are not what Zoo is typically brought in for.
- What can D5 Render do that Zoo cannot?
- D5 Render covers Real-time ray tracing, GI, Asset library, Video export. Zoo covers KCL scripting, Design Studio, Design API, Zookeeper agent.
Answered from the vendors’ own pages
D5 Render: What is the pricing for D5 Render Pro?
D5 Render Pro costs USD 38/month or USD 360/year. Annual billing saves 20-21% compared to monthly payments.
SourceZoo: 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.
D5 Render: Is there a free version of D5 Render?
Yes. D5 Render Community edition is free for non-commercial use. It includes the full rendering engine with real-time ray tracing, unlimited projects, and approximately 2,000 library models and materials.
SourceZoo: 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.
D5 Render: Does D5 Render work on macOS?
No. D5 Render is a Windows-only application that requires a dedicated NVIDIA GPU. There is no Mac version available.
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.
D5 Render: What are the output resolution capabilities in Pro?
D5 Render Pro supports 16K stills and panoramas, 4K video, frame sequence rendering, and VR output with full Showreel capabilities.
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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