CAD · head to head
CATIA vs nTop
nTop
CAD
Implicit computational design for lattices, heat exchangers and topology-driven parts
- From
- On request
- Rated
- -
The short version
- Each has a real cost: CATIA no public pricing available on vendor website; nTop nTop is a specialist tool that sits alongside mainstream CAD rather than replacing it, so you pay for an extra seat and accept a handoff between two geometry systems.
- They diverge on capability: CATIA covers Surface modeling, nTop covers Implicit modelling.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which CATIA and nTop actually diverge.
Identical on both: starting price (On request), pricing model (quote), free tier (No), 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 CATIA
- Surface modeling
- Class A surfacing
- Systems engineering
- Simulation
- Composites design
- Electrical design
- Knowledge-based engineering
- ENOVIA PLM
Only in nTop
- Implicit modelling
- Lattice and cellular structures
- Field-driven design
- Integrated simulation
- Reusable workflows
- Topology optimisation
- CAD and AM interoperability
What people use each for
The jobs each tool is most often brought in to do.
CATIA
- 3D product designnot nTop
- Simulation and analysisnot nTop
- System design and developmentnot nTop
- Manufacturing engineeringnot nTop
- Advanced modelingnot nTop
nTop
- Designing a variable-density lattice bracket where mass must drop without losing stiffness in the loaded regionsnot CATIA
- Generating a heat exchanger with thousands of internal channels that a conventional CAD kernel cannot representnot CATIA
- Producing patient-specific implant geometry with porous surfaces at scale rather than one at a timenot CATIA
- Automating a family of parts as a reusable design workflow that reruns when the load case changesnot CATIA
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
CATIA
- No public pricing available on vendor website
- Requires direct contact with sales for quotes
- Enterprise-grade CAD software likely requires substantial investment
nTop
- nTop is a specialist tool that sits alongside mainstream CAD rather than replacing it, so you pay for an extra seat and accept a handoff between two geometry systems.
- Implicit modelling requires a different way of thinking from feature-based CAD, and the retraining period is long enough that unused licences are a common and expensive outcome.
- No pricing is published and there is no free or hobbyist tier, so evaluation runs through a sales process and small teams cannot try it seriously without engaging.
- Subscription only, with no perpetual licence, means the geometry logic you built stops being editable the day you stop paying, which is a real risk for long-lifecycle aerospace and medical programmes.
- The output is most valuable when you have additive manufacturing capacity to make it; organisations without machines that can print the geometry end up designing parts nobody can produce.
Pricing, plan by plan
CATIA
On requestNo published plan breakdown. See the CATIA review.
nTop
On request- nTop$undefined/year
- Annual named or floating seat subscription
- No perpetual licence offered
- Capability tiers quoted by use case
Which should you pick?
Choose CATIA if
- You need surface modeling.
- You work on Windows, Linux (some).
- You also want class a surfacing.
Choose nTop if
- You need implicit modelling.
- You work on Windows, Cloud.
- You also want lattice and cellular structures.
Questions people ask
- Is CATIA or nTop better?
- Neither clearly leads. CATIA starts at On request and nTop at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, CATIA or nTop?
- CATIA starts at On request and nTop at On request.
- Does CATIA or nTop run on more platforms?
- CATIA runs on Windows, Linux (some). nTop runs on Windows, Cloud.
- What is CATIA best used for?
- CATIA is most often used for 3d product design, simulation and analysis, system design and development, manufacturing engineering. Of those, 3d product design and simulation and analysis are not what nTop is typically brought in for.
- What can CATIA do that nTop cannot?
- CATIA covers Surface modeling, Class A surfacing, Systems engineering, Simulation. nTop covers Implicit modelling, Lattice and cellular structures, Field-driven design, Integrated simulation.
Answered from the vendors’ own pages
CATIA: How much does CATIA cost?
Pricing is not publicly displayed on CATIA's product page. Customers must contact Dassault Systèmes directly or visit user communities to obtain pricing information for CATIA licenses and subscriptions.
SourcenTop: Is nTop the same company as nTopology?
Yes. nTopology rebranded to nTop. The product is the same lineage.
CATIA: Is there a free version of CATIA?
No free version or trial is mentioned on CATIA's product page. CATIA is described as a comprehensive commercial solution for product innovation, and no freemium option is referenced.
SourcenTop: Does it replace SolidWorks or NX?
No. It is used alongside them. Mainstream CAD handles the conventional geometry and assembly; nTop handles the lattice, field-driven and complex internal structure work.
nTop: Is there a free version?
No free commercial tier is published. Access runs through a demo and sales process, with academic programmes handled separately.
nTop: Can I buy a perpetual licence?
No. It is sold as an annual subscription, so budget it as recurring cost across the life of the programme.
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