--- title: FlexSim Reviews meta_title: 'FlexSim Reviews 2026: Details, Pricing, & Features | G2' meta_description: Filter 57 reviews by the users' company size, role or industry to find out how FlexSim works for a business like yours. aggregate_rating: rating_value: 4.4 review_count: 57 scale: '5' date_modified: '2026-10-07' parent_category: name: Process Automation url: https://www.g2.com/categories/process-automation ---

FlexSim Pros and Cons: Top Advantages and Disadvantages

Quick AI Summary Based on G2 Reviews

Generated from real user reviews

Users admire the accuracy of FlexSim, enabling realistic simulations of real-time environments and interactions. (1 mentions)
Users value the powerful and interactive simulation capabilities of FlexSim, accurately reflecting real-time environments. (1 mentions)
Users experience performance issues with FlexSim, including reduced simulation speed and unexpected model closures requiring rework. (1 mentions)
Users report that slow simulation and unexpected model closes significantly hinder their productivity and workflow in FlexSim. (1 mentions)

Top Pros or Advantages of FlexSim

Top Cons or Disadvantages of FlexSim

Roushan J.
RJ
Roushan J.
Research Project Assistant
Consulting
Small-Business (50 or fewer emp.)
Business partner of the seller or seller's competitor, not included in G2 scores.
"Extraordinary"
5/5
What do you like best about FlexSim?

There are so many :

1. 3D visualization

2. DES: easy to understand

3. I can make any model in this with the most ease.

4. Digital twin integration (which I like most)

5. I have made more than 100 models in Flexsim which is a milestone for me, Thanks to FlexSim. Review collected by and hosted on G2.com.

What do you dislike about FlexSim?

There is a rare dislike for FlexSim .

You can't dislike the things which give you more comfort however there is some sort of assumptions always have to make in term of the library but it's okay

but

I just want to learn emulation, there is no video tutorial for that like choosing the right plc, or how to connect hardware to software. There should be a video tutorial Review collected by and hosted on G2.com.

Verified User in Manufacturing
UM
Verified User in Manufacturing
Enterprise (> 1000 emp.)
"FlexSim is a Very good software tool for Discrete Event Simulation engineers and Digital Twin."
5/5
What do you like best about FlexSim?

As a FlexSim user for the last 5 years, what I appreciate most about this software is its user-friendly interface, modeling capabilities, and 3D visualizations. FlexSim simplifies complex simulations with its drag-and-drop features and 3D object libraries. The customization and scripting options are flexible. The support and user community of FlexSim Answers make problem-solving easy. It's an invaluable tool for my work. Especially, I like Process Flow, Tree Nodes API, GUI building option with JS support, external DB connection, external programming (Python) support, HTTP host for connection REST APIs, and the list of statistical distributions available to use in coding. Review collected by and hosted on G2.com.

What do you dislike about FlexSim?

FlexSim has not yet properly developed Git repositories for Python libraries to control FlexSim externally; the manual method takes a huge amount of time. Reinforcement Learning needs more detailed documentation and a detailed video on how to use it with proper use cases. A new feature needs to be developed: while coding, if the object is selected, it should highlight in the model, making it more visually appealing and comfortable to debug. Google Sheets data import and export options like Excel need to be added. Review collected by and hosted on G2.com.

Verified User in Mechanical or Industrial Engineering
UM
Verified User in Mechanical or Industrial Engineering
Small-Business (50 or fewer emp.)
"A great digital twin software"
4/5
What do you like best about FlexSim?

The ability to customize many options, real-time processing views and the ability to summarize the outcomes. Review collected by and hosted on G2.com.

What do you dislike about FlexSim?

I wish there were more options to customize human aspects and ergonomics. Review collected by and hosted on G2.com.

Verified User in Manufacturing
UM
Verified User in Manufacturing
Enterprise (> 1000 emp.)
"Flexsim review"
4.5/5
What do you like best about FlexSim?

The support and help page alongside the live team is very good and active for flexsim, so even a beginner can learn and move through the software quite easily. I have mastered a lot of complex in the past 5 months, before which I was a beginner in the software. Review collected by and hosted on G2.com.

What do you dislike about FlexSim?

There are a few minor and rare bugs here and there but nothing that the support team couldn't help with. Review collected by and hosted on G2.com.

Moosa kaleemullah S.
MS
Moosa kaleemullah S.
Smart manufacturing engineer
Enterprise (> 1000 emp.)
"Great working with such an interactive tool"
5/5
What do you like best about FlexSim?

Powerful innovative and interactive tool simulating tool with accurate results.it does provide u to simulate the real time environment. Everything in real time could be simulated starting from the breakdowns to small stoppages and interaction of resources in the factory premises Review collected by and hosted on G2.com.

What do you dislike about FlexSim?

Issues with the model as the mode size increases the simulating speed reduces.apart from from this the model closes itself creating issues to the user , as the user has to rework on the model from the start. Review collected by and hosted on G2.com.

Pradeep A.
PA
Pradeep A.
Student
Small-Business (50 or fewer emp.)
"Flexsim: A powerful tool for business and research"
5/5
What do you like best about FlexSim?

Flexsim is an amazing software that allows to simulate and optimize any tasks. It is very user-friendly and has a wide range of features that can be customized according to the needs. Flexsim has helped me immensely in my research projects. It allows me to test out different scenarios and see which one is the most efficient. I highly recommend Flexsim to anyone who wants to improve their business processes or use it for research purposes. Review collected by and hosted on G2.com.

What do you dislike about FlexSim?

Flexsim should create more resources (tutorials, how-to videos, etc.) to help users get the most out of the software. Additionally, the user interface looks old and it could be improved. Review collected by and hosted on G2.com.

João V.
JV
João V.
Researcher
Mid-Market (51-1000 emp.)
"FlexSim is a complete simulation software."
5/5
What do you like best about FlexSim?

FlexSim has a friendly interface with useful 3D module. For me, the best thing about FlexSim is the customer service, with quick responses and help on every doubts that you have. Review collected by and hosted on G2.com.

What do you dislike about FlexSim?

Sometimes it is not easy to build more complex models. I know that process flow is helpful in this case, but there are few tutorials about this feature. Moreover, more intuitive API connecting FlexSim with Python would be very helpful. Review collected by and hosted on G2.com.

Priyanka G.
PG
Priyanka G.
Graduate Trainee
Small-Business (50 or fewer emp.)
Business partner of the seller or seller's competitor, not included in G2 scores.
"As I am a fresher to this domain it really helped me to develop my knowledge"
5/5
What do you like best about FlexSim?

Whenever you're not understanding or have any problem, I just ask FlexSim. They answer so quickly and give you an alternate solution, so you can use either method which is feasible. Review collected by and hosted on G2.com.

What do you dislike about FlexSim?

Nothing much to complain about. I love FlexSim service, you people are great. Thank you for such service, and it would be better if one solution was accessible in all versions. Review collected by and hosted on G2.com.

Verified User in Automotive
UA
Verified User in Automotive
Enterprise (> 1000 emp.)
"Perfect GUI DES software for any industry"
5/5
What do you like best about FlexSim?

It's user interface is very easy to learn. Drag and drop library is the best. Review collected by and hosted on G2.com.

What do you dislike about FlexSim?

Some bugs in the conveyor systems and agvs. Review collected by and hosted on G2.com.

OA
Osama A.
Assistant Professor
Mid-Market (51-1000 emp.)
"Very flexible DES software"
5/5
What do you like best about FlexSim?

3D models can cover many industries. I'm using it for different industries: steel foundry, plastic extrusion, education, 3D sand printing, mining sites and machining processes. Review collected by and hosted on G2.com.

What do you dislike about FlexSim?

I wished it can give a build-in report, like Arena simulation from Rockwell Automation. Statistical collecter is a very complicated tool. Changing menus and options every year. Review collected by and hosted on G2.com.