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HELYX

Paid#7 of 22 in CFD software

HELYX: A commercial OpenFOAM-based CFD package with meshing and broad flow-simulation capabilities. Ranked #7 of 22 in CFD software by our editors (7.9/10); pricing: Pricing on request; best for teams wanting flexible OpenFOAM-based CFD.

7.9/10Editor score

Contact ENGYS

HELYX7.9 Contact ENGYS

At a glance

Editor score
7.9 / 10
Pricing
Pricing on request
Best for
Teams wanting flexible OpenFOAM-based CFD
Free plan
No
Deployment
Hybrid
Facts checked
24 Sep 2026

Where it wins
- Covers compressible and incompressible flows, turbulence, and multiphase simulation
- Includes mesh generation, moving meshes, and conjugate heat transfer
- Client-server operation supports local, remote, and cloud computing
Where it doesn't
- The HELYX package is commercial, despite its open-source HELYX-Core engine
- Pricing requires contacting ENGYS rather than choosing a published plan
- The listed desktop operating systems are limited to Windows and Linux

Our verdict on HELYX

HELYX is a general-purpose computational fluid dynamics package from ENGYS, combining a graphical interface with HELYX-Core, an open-source simulation engine, for finite-volume engineering analysis. Its scope suits engineering teams and researchers working across areas such as automotive, aerospace, energy, marine, process engineering, and academia. The vendor lists support for compressible and incompressible flow, turbulence modelling, single- and multiphase simulation, multispecies flows, multiphysics, moving meshes, and conjugate heat transfer. It is available for Windows and Linux, and the HELYX package is licensed to paying customers.

The breadth of simulation capabilities is a central reason to consider HELYX: it brings mesh generation together with flow, thermal, and multiphysics work in one package. Client-server operation supports computing locally, remotely, or in the cloud, giving teams options for where runs take place. ENGYS says runs can use available computing cores without additional HPC licensing fees. That may matter to teams planning compute usage, though the vendor does not publish a maximum core count or plan-specific pricing. HELYX-Core being open source should not be confused with the commercial product as a whole: the GUI is proprietary and the package is sold to customers.

According to the vendor's product information, pricing is handled by contacting ENGYS rather than selecting from published plans, so buyers will need a sales conversation to understand cost. Email is a listed support channel. HELYX is a fit for teams that want a broad OpenFOAM-based CFD workflow, meshing, and flexible local, remote, or cloud execution, and that are comfortable evaluating a commercial package with a proprietary interface. It is less suited to buyers who require a free complete product or need to compare published tier prices before speaking with a vendor.

Your product? Our editors can test HELYX in depth and publish a review, labelled as paid · from $149/mo →

HELYX pricing

Plans Pricing on requestPaid No free plan — trial or paid only. Prices checked 24 Sep 2026.

See plans on engys.com

HELYX fact sheet

Free plan	No
Paid from	Not verified
Deployment	Hybrid
Multiphysics solver	Yes
Built-in meshing	Yes
CAD import	Not verified
Parallel cores	Not verified
Operating systems	Linux, Windows
Deployment	Cloud, Self-hosted
Platforms	Windows, Linux
Support	Email
Built for	Small business, Mid-market, Enterprise (editorial estimate)
Pricing	Pricing on request
Website	engys.com
Facts checked	24 Sep 2026

Alternatives to HELYX

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HELYX vs the competition

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The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used HELYX for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.

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Featured on iTechGuides

HELYX is listed in our CFD software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update