# Altair OptiStruct vs CATIA Comparison

| | Altair OptiStruct | CATIA | 
|---|---|---|
| **Star Rating** | 4.4 out of 5 | 4.2 out of 5 | 
| **Total Reviews** | 34 | 255 | 
| **Largest Market Segment** | Small-Business (39.4% of reviews) | Enterprise (49.6% of reviews) | 
| **Entry Level Price** | No pricing available | No pricing available | 

---
## Top Pros & Cons

### Altair OptiStruct

**Not enough data**

### CATIA

Pros:
- Features (3 reviews)
- 3D Modeling (2 reviews)

Cons:
- Complex Interface (2 reviews)
- Complex UI (2 reviews)

---
## Ratings Comparison
| Rating | Altair OptiStruct | CATIA | 
|---|---|---|
  | **Meets Requirements** | 8.9 (25 reviews) | 8.7 (219 reviews) | 
  | **Ease of Use** | 8.8 (25 reviews) | 7.3 (222 reviews) | 
  | **Ease of Setup** | 9.0 (7 reviews) | 8.2 (25 reviews) | 
  | **Ease of Admin** | 8.1 (6 reviews) | 7.7 (11 reviews) | 
  | **Quality of Support** | 9.3 (23 reviews) | 7.7 (195 reviews) | 
  | **Has the product been a good partner in doing business?** | 9.2 (6 reviews) | 7.8 (13 reviews) | 
  | **Product Direction (% positive)** | 8.5 (24 reviews) | 8.1 (217 reviews) | 

---
## Pricing

### Altair OptiStruct

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

### CATIA

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

---
## Features Comparison By Category

### Simulation & CAE

| Product | Score | Reviews |
|---|---|---|
| **Altair OptiStruct** | 8.5/10 | 25 |
| **CATIA** | N/A | N/A |

#### Design

| Feature | Altair OptiStruct | CATIA | 
|---|---|---|
| **3D/solid modeling Tools** | 8.2 (17 reviews) | Not enough data | 
| **Drawing Tools** | 8.6 (17 reviews) | Not enough data | 
| **Editing Tools** | 9.0 (17 reviews) | Not enough data | 
| **Rendering tools** | 8.1 (13 reviews) | Not enough data | 

#### Tools

| Feature | Altair OptiStruct | CATIA | 
|---|---|---|
| **Fluid analysis** | 8.0 (15 reviews) | Not enough data | 
| **Finite element analysis** | 9.1 (24 reviews) | Not enough data | 
| **Multibody dynamics** | 8.7 (15 reviews) | Not enough data | 

#### Work

| Feature | Altair OptiStruct | CATIA | 
|---|---|---|
| **Discrete event modeling** | 8.2 (14 reviews) | Not enough data | 
| **Continuous event modeling** | 8.7 (15 reviews) | Not enough data | 
| **Mechanical event simulation** | 9.1 (17 reviews) | Not enough data | 
| **Manufacturing process simulation** | 8.5 (12 reviews) | Not enough data | 
| **Integrate** | 8.1 (14 reviews) | Not enough data | 

#### Environment

| Feature | Altair OptiStruct | CATIA | 
|---|---|---|
| **Hardware support** | 8.3 (16 reviews) | Not enough data | 
| **Task** | 8.3 (19 reviews) | Not enough data | 
| **Manage Multiple Profiles** | 8.8 (15 reviews) | Not enough data | 
| **Command Clarity** | 8.8 (18 reviews) | Not enough data | 

### Mechanical Computer-aided Design (MCAD)

| Product | Score | Reviews |
|---|---|---|
| **Altair OptiStruct** | N/A | N/A |
| **CATIA** | 8.4/10 | 9 |

#### Tools - Mechanical Computer-aided Design (MCAD)

| Feature | Altair OptiStruct | CATIA | 
|---|---|---|
| **3D/solid modeling Tools** | Not enough data | 9.2 (8 reviews) | 
| **Rendering Tools** | Not enough data | Not enough data | 
| **Drawing Tools** | Not enough data | 9.2 (6 reviews) | 
| **Editing Tools** | Not enough data | 8.7 (5 reviews) | 
| **Text Editing Tools** | Not enough data | 8.0 (5 reviews) | 

#### File Options - Mechanical Computer-aided Design (MCAD)

| Feature | Altair OptiStruct | CATIA | 
|---|---|---|
| **Export Files** | Not enough data | 9.3 (5 reviews) | 
| **Import Files** | Not enough data | 8.7 (5 reviews) | 
| **File Interoperability** | Not enough data | 8.0 (5 reviews) | 
| **Backwards compatibility** | Not enough data | 8.3 (5 reviews) | 
| **File size** | Not enough data | 7.9 (7 reviews) | 

#### Customization - Mechanical Computer-aided Design (MCAD)

| Feature | Altair OptiStruct | CATIA | 
|---|---|---|
| **Custom Commands** | Not enough data | 8.7 (5 reviews) | 
| **Custom Scripts** | Not enough data | 8.0 (5 reviews) | 
| **Custom Menus** | Not enough data | Not enough data | 
| **Custom Interface** | Not enough data | Not enough data | 

#### Environment - Mechanical Computer-aided Design (MCAD)

| Feature | Altair OptiStruct | CATIA | 
|---|---|---|
| **Hardware support** | Not enough data | 7.0 (5 reviews) | 
| **Task-based interfaces** | Not enough data | Not enough data | 
| **Manage Multiple Profiles** | Not enough data | Not enough data | 
| **Command Clarity** | Not enough data | 7.7 (5 reviews) | 

---
## Categories
**Shared Categories (1):** [Simulation & CAE Software](https://www.g2.com/categories/simulation-cae)


**Unique to CATIA (1):** [Mechanical Computer-aided Design (MCAD) Software](https://www.g2.com/categories/mechanical-computer-aided-design-mcad)


---
## Reviewer Demographics

### By Company Size

| Segment | Altair OptiStruct | CATIA | 
|---|---|---|
| **Small-Business** | 39.4% | 21.7% | 
| **Mid-Market** | 36.4% | 28.7% | 
| **Enterprise** | 24.2% | 49.6% | 

### By Industry

#### Altair OptiStruct

- **Automotive:** 40.6%
- **Mechanical or Industrial Engineering:** 9.4%
- **Aviation & Aerospace:** 9.4%
- **Information Technology and Services:** 6.3%
- **Computer Software:** 6.3%
- **Airlines/Aviation:** 6.3%
- **Research:** 3.1%
- **Mining & Metals:** 3.1%
- **Machinery:** 3.1%
- **Higher Education:** 3.1%
- **Other:** 9.4%

#### CATIA

- **Automotive:** 26.3%
- **Aviation & Aerospace:** 21.7%
- **Mechanical or Industrial Engineering:** 13.8%
- **Design:** 9.6%
- **Airlines/Aviation:** 5.0%
- **Information Technology and Services:** 3.3%
- **Higher Education:** 2.5%
- **Defense & Space:** 1.7%
- **Computer Software:** 1.3%
- **Medical Devices:** 1.3%
- **Other:** 13.8%

---
## Alternatives

### Alternatives to Altair OptiStruct

- [Abaqus](https://www.g2.com/products/abaqus/reviews) — 4.3/5 stars (54 reviews)
- [Ansys LS-DYNA](https://www.g2.com/products/ansys-ls-dyna/reviews) — 4.5/5 stars (48 reviews)
- [Inventor Nastran](https://www.g2.com/products/inventor-nastran/reviews) — 4.0/5 stars (23 reviews)
- [MATLAB](https://www.g2.com/products/matlab/reviews) — 4.5/5 stars (770 reviews)
- [Ansys Mechanical](https://www.g2.com/products/ansys-mechanical/reviews) — 4.4/5 stars (92 reviews)
- [Autodesk Fusion](https://www.g2.com/products/autodesk-fusion/reviews) — 4.5/5 stars (519 reviews)
- [Inventor](https://www.g2.com/products/inventor/reviews) — 4.4/5 stars (440 reviews)
- [Designcenter Solid Edge](https://www.g2.com/products/designcenter-solid-edge/reviews) — 4.3/5 stars (599 reviews)
- [Onshape](https://www.g2.com/products/onshape/reviews) — 4.7/5 stars (695 reviews)
- [SOLIDWORKS](https://www.g2.com/products/solidworks/reviews) — 4.5/5 stars (643 reviews)

### Alternatives to CATIA

- [Onshape](https://www.g2.com/products/onshape/reviews) — 4.7/5 stars (695 reviews)
- [SOLIDWORKS](https://www.g2.com/products/solidworks/reviews) — 4.5/5 stars (643 reviews)
- [Designcenter Solid Edge](https://www.g2.com/products/designcenter-solid-edge/reviews) — 4.3/5 stars (599 reviews)
- [Autodesk Fusion](https://www.g2.com/products/autodesk-fusion/reviews) — 4.5/5 stars (519 reviews)
- [Inventor](https://www.g2.com/products/inventor/reviews) — 4.4/5 stars (440 reviews)
- [Creo](https://www.g2.com/products/creo-2025-08-26/reviews) — 4.1/5 stars (200 reviews)
- [AutoCAD](https://www.g2.com/products/autocad/reviews) — 4.4/5 stars (1932 reviews)
- [Designcenter NX](https://www.g2.com/products/designcenter-nx/reviews) — 4.4/5 stars (527 reviews)
- [Rhinoceros](https://www.g2.com/products/rhinoceros/reviews) — 4.4/5 stars (191 reviews)
- [FreeCAD](https://www.g2.com/products/freecad/reviews) — 4.1/5 stars (61 reviews)

---
## Top Discussions

### Altair OptiStruct

- Title: [Can i do the kinematics & dynamic analysis of rigid body (Mechanism ) along with the FEA analysis](https://www.g2.com/discussions/32044-can-i-do-the-kinematics-dynamic-analysis-of-rigid-body-mechanism-along-with-the-fea-analysis) — 1 comment, 1 upvote
  > **Top comment:** "Yes, OptiStruct is fully integrated with MotionSolve, Altair’s motion analysis solver, supporting both rigid and flex bodies FE analyses.  See..."
- Title: [Inertia relief analysis of same model was performed using Optistruct and Nastran, Result of Optistruct was showing very high stresses to that of Nastran. Why is it so?](https://www.g2.com/discussions/32003-inertia-relief-analysis-of-same-model-was-performed-using-optistruct-and-nastran-result-of-optistruct-was-showing-very-high-stresses-to-that-of-nastran-why-is-it-so) — 1 comment, 1 upvote
  > **Top comment:** "OptiStruct solves both linear and nonlinear problems using an enhanced proprietary version of NASTRAN. We’d need to see the model to troubleshoot your issue."

### CATIA

- Title: [What is CATIA used for?](https://www.g2.com/discussions/what-is-catia-used-for) — 1 comment
  > **Top comment:** "It is high-end CAD software used for creating 3D data in manufacturing industry."
- Title: [What is inside Catia software?](https://www.g2.com/discussions/what-is-inside-catia-software) — 1 comment
  > **Top comment:** "CAD 3D models from product industry and engineering"
- Title: [What is Catia software used for?](https://www.g2.com/discussions/what-is-catia-software-used-for) — 1 comment
  > **Top comment:** "CATIA software is commonly used for:
1. Plastic and Metal parts design.
2. Wire harness design.
3. Drafting and Drawing
4. Mould and Die design.
5...."
- Title: [If CATIA provide solution for fluid dynamics problem it will be good](https://www.g2.com/discussions/31774-if-catia-provide-solution-for-fluid-dynamics-problem-it-will-be-good) — 1 comment, 2 upvotes
  > **Top comment:** "Catia has computational fluid dynamic (CFD)
You have to add in floEFD into your catia. 
It can be added from version 5 or above. 

Similarly you can also..."

---
**Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/altair-optistruct-vs-catia)