FlexSim vs ICEM Surf
FlexSim
flexsim.comICEM Surf
3ds.comSide by side
| Figure | FlexSim | ICEM Surf |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | — |
| Windows | Yes | Yes |
| Plans published | 1 | 2 |
| Spec score · Simulation Software | 7.8 (#8) | 8.1 (#7) |
| Purpose | FlexSim is 3D discrete-event simulation software for modeling and improving existing and proposed systems. | ICEM Surf is a curve and surface modeling tool for defining, analyzing, and visualizing complex free-form CAD surface models. |
| Security | The product page links to Autodesk privacy and legal pages, but the opened FlexSim product and company pages do not state a security certification or compliance standard. | Dassault Systèmes says its 3DEXPERIENCE cloud platform ISMS is certified to ISO/IEC 27001:2022; this certification is stated for the platform, not specifically ICEM Surf. |
| Support | Technical support is included for customers with active maintenance or subscription, and the support page aims for a first response within two working days. | The ICEM Surf support page directs users with further hardware or software questions to ICEM Surf support. |
Plans
ICEM Surf
- ICEM Surf Learning EditionFree
- ICEM Surf commercial licensesPriced on request
In their own words
FlexSim
FlexSim is 3D discrete-event simulation software for modeling and improving existing or proposed systems. Its realistic 3D graphics visualize system behavior, while drag-and-drop controls let users place objects and resources and import CAD drawings or custom 3D objects. Model-building options include a Standard Object Library, Process Flow activity blocks, FlexScript, and C++ integration. For analysis, FlexSim offers charts, graphs, data tracking, and spreadsheet export. OptQuest integration supports scenario optimization using variables, constraints, and multiple objectives. The Experimenter compares scenarios, distributes replications across CPU cores, and supports report generation and performance measures. Data can be imported and exported through Excel and SQL connectors, with FlexScript APIs for files, sockets, and HTTP requests. The Emulation tool supports Modbus, OPC DA, OPC UA, and certain manufacturer-specific PLC connections; some require an Emulation license. FlexSim is listed for Windows and web, with desktop deployment. Pricing is on request; the free Express trial plan has limits including 30 3D objects and 35 Process Flow activities.
ICEM Surf
ICEM Surf is a curve and surface modeling tool for defining, analyzing, and visualizing complex free-form CAD surface models. It is used in automotive, aerospace, consumer goods, and press-tool design. Its modeling tools and dynamic diagnostics support creating and checking Class-A surface geometry. Listed modules include Professional, Master, Magic, Advanced Tools, Safety Analysis, Scan Modelling, and Immersive VR Review and Realtime Rendering. The Scan Modelling add-on handles dense, ordered, or random point clouds from laser and photo digitizers. Safety Analysis detects sharp edges and corners by simulating a sphere rolling across model geometry. Realtime Rendering supports shadows, environments, materials, lighting effects, and VR design reviews. ICEM Surf supports Windows 10/11 64-bit; its 2026 visualization and rendering requirements specify Windows 11 H2 or newer. It needs at least 8 GB of 64-bit main memory. Commercial pricing is on request, and some interfaces and add-on modules require additional licenses. A free Learning Edition is available after signing in or creating a 3DEXPERIENCE ID, for personal learning only and without support.