Altair has long been one of the major names in engineering simulation, with tools covering structural analysis, computational fluid dynamics (CFD), electromagnetics, motion, optimization, manufacturing simulation, high-performance computing and data analytics.

But evaluating Altair software became considerably more complicated after Siemens completed its acquisition of Altair Engineering in March 2025.

The software did not disappear. In fact, much of it is becoming part of Siemens’ much larger Simcenter simulation portfolio.

For engineers trying to evaluate the technology, however, that creates an important new question:

A modern engineering workstation displaying a complex finite element simulation of an automotive or component, with colorful stress contours

Are you evaluating Altair software, Siemens Simcenter softwareโ€”or both?

The answer, increasingly, is both.

Altair Is Now Part of Siemens

Siemens completed its acquisition of Altair Engineering in March 2025 in a transaction valued at approximately $10 billion.

The acquisition added Altair’s simulation, optimization, electromagnetics, high-performance computing, data science and artificial intelligence technologies to Siemens Xcelerator.

Since then, Siemens has begun integrating and renaming much of the Altair engineering software portfolio under the Simcenter brand.

For existing Altair users, many of the underlying technologies remain familiar.

For new evaluators, however, the changing names can make researching the software confusing.

For example:

  • Altair HyperMesh is becoming Simcenter Hypermesh
  • Altair HyperView is becoming Simcenter Hyperview
  • Altair Inspire is becoming Simcenter Inspire
  • Altair SimLab is becoming Simcenter Simlab
  • Altair OptiStruct is becoming Simcenter Optistruct
  • Altair Radioss is becoming Simcenter Radioss
  • Altair SimSolid is becoming Simcenter Simsolid
  • Altair AcuSolve is becoming Simcenter Acusolve
  • Altair Feko is becoming Simcenter Feko
  • Altair Flux is becoming Simcenter Flux
  • Altair PhysicsAI is becoming Simcenter PhysicsAI

Siemens says the changes currently focus largely on naming, packaging and integration, rather than replacing the underlying Altair technology.

That distinction matters if you are evaluating the software today.

Documentation, training material, forum discussions and search results may still use the old Altair product names even as Siemens begins marketing the products under Simcenter.

What Is Altair HyperWorks?

Altair HyperWorks has historically served as the umbrella environment for many of Altair’s engineering simulation applications.

Rather than representing one single-purpose simulation solver, HyperWorks connects tools used throughout the CAE workflow, including model preparation, meshing, solving, optimization and results visualization.

Depending on the engineering problem, users may encounter technologies including:

HyperMesh

HyperMesh is one of Altair’s best-known products and is widely used for finite element model preparation, meshing and simulation preprocessing.

It is now being branded Simcenter Hypermesh.

OptiStruct

OptiStruct is a structural analysis and optimization solver capable of linear and nonlinear finite element analysis as well as topology and structural optimization.

It is becoming Simcenter Optistruct.

Radioss

Radioss is an explicit dynamics solver commonly associated with highly nonlinear problems such as crash, impact and other transient events.

It is becoming Simcenter Radioss.

SimSolid

SimSolid provides structural simulation without requiring the traditional geometry simplification and meshing workflow associated with conventional finite element analysis.

It is becoming Simcenter Simsolid.

AcuSolve

AcuSolve provides computational fluid dynamics capabilities for fluid-flow and heat-transfer simulation.

It is becoming Simcenter Acusolve.

Feko and Flux

Altair’s electromagnetic simulation portfolio includes Feko for high-frequency electromagnetic analysis and Flux for low-frequency electromagnetic and electromechanical simulation.

These products are becoming Simcenter Feko and Simcenter Flux.

MotionSolve

MotionSolve supports multibody dynamics simulation for mechanical systems.

It is becoming Simcenter Motionsolve.

The breadth of the portfolio is one of Altair’s greatest strengthsโ€”but it also means that evaluators should determine which solver or workflow they actually need before beginning a trial.

Is There an Altair HyperWorks Free Trial?

Yes, Altair continues to provide trial opportunities, although the process is not as simple as downloading a generic 30-day desktop trial.

One current option is an Altair Unlimited cloud trial.

The evaluation environment allows users to experience HyperWorks in the cloud and access Altair simulation applications through a web browser.

Available solver technologies listed by Altair include:

  • AcuSolve
  • Feko
  • Flux
  • MotionSolve
  • OptiStruct
  • Radioss

Users can also work with technologies including HyperMesh, HyperLife and HyperView.

The trial requires submitting a request rather than simply creating an account and immediately downloading unrestricted software.

That makes the evaluation process more controlled than the self-service trials offered by some engineering software vendors.

Is Altair Student Edition Free?

Yes.

Altair offers a free Student Edition for qualified students.

The Student Edition provides access to a surprisingly broad collection of CAE, simulation and data science technologies through Altair One.

Available engineering applications can include technologies such as:

  • HyperMesh
  • HyperView
  • HyperStudy
  • MotionView
  • OptiStruct
  • Radioss
  • MotionSolve
  • MultiScale Designer

Students create an Altair One account, obtain a Student Edition license and then download eligible applications through the Altair Marketplace.

Because the Altair portfolio is now being integrated into Siemens, students should expect product names and licensing paths to continue evolving.

Altair One and the Evaluation Experience

Altair One remains an important part of the Altair software ecosystem.

It acts as a gateway for software downloads, licensing, cloud resources, learning materials and other Altair services.

For an evaluator, Altair One can be valuable because Altair’s portfolio contains so many individual applications.

However, this is also one area where the Siemens acquisition currently creates some additional complexity.

An evaluator may encounter:

  • Altair.com
  • Altair One
  • Siemens.com
  • Siemens Xcelerator
  • Simcenter product pages
  • legacy Altair product names
  • newly renamed Simcenter products

That does not mean the technology itself is unstable.

It does mean that product discovery is presently more confusing than it was when Altair operated as a completely independent software company.

Altair’s Licensing Model

Altair has historically differentiated itself through its Altair Units licensing model.

Rather than purchasing completely independent licenses for every individual application, organizations can use a pool of units across eligible Altair software products.

The concept is particularly useful for engineering organizations that need several different simulation disciplines but do not necessarily need every application running continuously.

An engineer might need structural simulation one day, CFD another day and optimization later in the design cycle.

Shared licensing can make a broad simulation portfolio more accessible than purchasing numerous isolated software licenses.

As Siemens integrates Altair technology into its larger software business, evaluators should specifically ask how current Altair Units licensing will interact with Siemens licensing and future Simcenter packaging.

That is an important commercial question to include in any serious evaluation.

What Should You Test During an Altair Evaluation?

Because Altair offers such a broad portfolio, testing individual features is not enough.

Use your own representative engineering problem whenever possible.

Evaluate:

Model preparation

How much work is required to import, clean and prepare your CAD geometry?

Meshing

If your workflow requires conventional FEA meshing, determine how much manual intervention is necessary and whether automated tools produce acceptable results.

Solver performance

Run a realistic model rather than a simplified demonstration problem.

Consider solve time, convergence behavior and computational requirements.

Results interpretation

Simulation software is only useful if engineers can confidently understand and communicate the results.

Evaluate plotting, animation, reporting and visualization capabilities.

Optimization

Optimization has historically been one of Altair’s strongest differentiators.

If design optimization matters to your organization, include OptiStruct, HyperStudy or other relevant optimization workflows in your evaluation.

Multiphysics workflow

If your engineering problems cross structural, thermal, fluid, electromagnetic or system boundaries, determine how easily information moves between simulation domains.

This may become increasingly important as Altair technologies are integrated with Siemens Simcenter.

HPC and cloud execution

Altair also brings substantial high-performance computing technology to Siemens.

Organizations running large simulations should evaluate job submission, resource management, scaling and cloud executionโ€”not merely solver features.

CAD and PLM integration

The Siemens acquisition makes this particularly interesting.

Organizations already using NX, Teamcenter or other Siemens Xcelerator technologies should investigate whether the integration of Altair technology creates meaningful workflow advantages.

But do not evaluate anticipated integration.

Evaluate what actually exists and works today.

How Has the Siemens Acquisition Changed Altair?

From a simulation technology perspective, the acquisition potentially makes Altair more formidable.

Siemens already had one of the industry’s broadest simulation portfolios through Simcenter.

Altair adds substantial capabilities in:

  • structural optimization
  • explicit dynamics
  • electromagnetic simulation
  • model preparation
  • mesh generation
  • design exploration
  • AI-assisted simulation
  • data analytics
  • high-performance computing

There is considerable overlap between the two portfolios.

That overlap could eventually produce tighter workflows and a remarkably broad engineering simulation ecosystem.

It can also create uncertainty.

Customers evaluating Altair technology should ask:

  • Which Altair products are being renamed?
  • Which products will remain distinct?
  • Will any overlapping products eventually be consolidated?
  • How will Altair Units licensing evolve?
  • Will existing Altair workflows integrate with NX and Teamcenter?
  • Which capabilities are available today rather than merely planned?
  • What migration protections exist for current Altair customers?

These questions are now part of evaluating Altair software.

Does the Siemens Acquisition Make Altair Better or Worse to Evaluate?

At this stage, both arguments have merit.

The acquisition potentially strengthens Altair because the technology now sits inside one of the world’s largest industrial software ecosystems.

An organization using Siemens Xcelerator may eventually gain tighter connections between CAD, PLM, simulation, manufacturing and digital-twin technologies.

At the same time, consolidation introduces uncertainty.

Engineers evaluating software generally want to know what they are buying, what it will be called, how it will be licensed and whether the workflow they implement today will still exist several years from now.

During a major portfolio integration, some of those answers may still be evolving.

That is not necessarily a reason to avoid Altair.

It is a reason to ask more questions during the evaluation.

Who Should Evaluate Altair Simulation Software?

Altair and the technologies now moving into Simcenter are particularly worth evaluating for organizations interested in:

  • finite element analysis
  • structural optimization
  • crash and impact simulation
  • computational fluid dynamics
  • electromagnetics
  • multibody dynamics
  • lightweighting
  • manufacturing simulation
  • design exploration
  • simulation automation
  • high-performance computing
  • AI-assisted engineering

It may be especially interesting for organizations already using Siemens NX, Teamcenter or other Siemens Xcelerator products because future integration could become an important differentiator.

Organizations considering Altair primarily because of that future integration, however, should distinguish carefully between current capabilities and roadmap promises.

Altair Simulation Trial: Our Evaluation Perspective

Altair remains unusually attractive as an engineering simulation platform because of the breadth of technology available within its ecosystem.

It also continues to provide legitimate ways to evaluate the technology before making a purchasing decision, including requested commercial trials and a substantial free Student Edition.

The Siemens acquisition does not diminish the engineering capabilities that made Altair interesting.

If anything, it potentially expands their strategic importance.

But in 2026, evaluators face one additional consideration they did not have several years ago:

You are no longer evaluating only the Altair products that exist today. You are also evaluating how those products fit into the rapidly expanding Siemens Simcenter and Xcelerator ecosystem.

That makes this an especially important time to test the software carefully, ask detailed licensing and roadmap questions, and document exactly which capabilities matter to your organization before purchasing.


Altair Simulation Trial Snapshot

Commercial trial: Yes, request required
Instant self-service trial: Limited / varies by product
Cloud evaluation: Yes
Free student version: Yes
Primary simulation areas: FEA, CFD, electromagnetics, motion, optimization, manufacturing simulation and multiphysics
Cloud/HPC capabilities: Yes
Current owner: Siemens
Portfolio transition: Many Altair engineering products are being renamed and integrated into Siemens Simcenter
Best for: Organizations needing broad multidisciplinary simulation, optimization and HPC capabilities

Engineering Software Trials Evaluation

Trial accessibility: 4/5
Real commercial evaluation options exist, including cloud access, but the trial path is not uniformly instant or self-service.

Trial usefulness: 5/5
The ability to work with substantial HyperWorks technology and multiple real simulation solvers makes the evaluation meaningful.

Student/learning access: 5/5
Altair provides one of the stronger free student offerings among major commercial CAE vendors.

Pricing transparency: 2/5
Enterprise simulation pricing and licensing generally require vendor engagement, and Siemens integration introduces additional packaging questions.

Product clarity: 3/5
The underlying portfolio is strong, but the current transition from Altair product names to Simcenter makes product discovery considerably more complicated.

Overall evaluation friendliness: 4/5

Altair earns a strong score because engineers can genuinely get access to meaningful simulation technology before purchasing. The Siemens acquisition does not lower that score by itself. The temporary deduction is for clarity, not ownership: evaluators currently need to navigate changing product names, brands and packaging while Siemens integrates Altair into Simcenter.

Before investing time in an Altair Unlimited trial

A simulation evaluation can require considerably more effort than trying ordinary desktop software. Engineers may spend days importing representative models, configuring solvers, validating results and learning unfamiliar workflows.

Because Siemens is actively integrating Altair into Simcenter, organizations considering an Altair Unlimited evaluation should first ask what will happen to the products and licensing model they are evaluating.

Before beginning the trial, ask Siemens or Altair:

  • Will Altair Unlimited and Altair Units remain available?
  • Which applications are expected to remain distinct products?
  • Will existing Altair licensing transition to Siemens licensing?
  • Will evaluated workflows remain supported under the new Simcenter portfolio?
  • Are any major product consolidations currently planned?

The answers may determine whether investing significant engineering time in the evaluation makes sense.