ExtendSim LicensesWe offer distinct license types depending on the use and/or type of environment the license or right of use is being purchased for. Decide what type of user you are from the left column to find out which ExtendSim license would best suit your needs.

For a more detailed side-by-side comparison of license types and functionality, go to License Types Matrix.


What type of ExtendSim user are you?

(academic use in coursework only)
. Frequent or "power-user" use for building and running models X        

Routine or normal use for building and running models

X X      
. Occasional, part-time, or one-time use for building and running models X X      
. Single user on one computer to build and run models X        
. Single user on one computer to run models built by others - no or limited model building     X   X
. Multiple users on one computer, one at a time   X      
. Multiple users on multiple computers, simultaneously/concurrently   X      
. Student use for coursework X X X   X
. Evaluation of ExtendSim, when the free Demo version is not sufficient     X    
. Off-load extensive model analysis runs to a separate computer
. Provide access to ExtendSim functionality over the internet or intranet to those who don't have ExtendSim
Note: requires programming


.For maximum flexibility and cost-effectiveness, most companies employ a mix of Single-User and Network licenses.

.Companies who want to provide ExtendSim functionality to outside customers over the internet and who design custom web/based forms, purchase the ASP license.


ExtendSim Product Line

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License Types

Single User Licenses
A stand-alone license installed on a single computer


bullet A Single User License allows one person to use ExtendSim on their computer. (For multiple users on one computer, or installation on multiple computers, see the Concurrent User Network License.)

This license type is cost-effective for modelers who use ExtendSim frequently or regularly, for ExtendSim power users, and in situations where there are only a few ExtendSim modelers.
bullet The user is also granted the right to install ExtendSim on their laptop or home computer, provided the computers are not used simultaneously.


All ExtendSim products include electronic versions of the ExtendSim User Guide and Developer Reference.




Full-featured products - after a 60 day complimentary support period, assistance from our support staff is available either under an annual Maintenance Plan or on a Per-Incident basis. Technical assistance for installation questions or bug reports related to the current release is complimentary.

bullet Limited products - our support staff will provide complimentary technical assistance for installation questions or bug reports related to the current release.


bullet Full-featured products - upgrades to new versions are fee-based unless you opt for the Maintenance Plan.
bullet Limited products - there is no upgrade path.

These products are available as single user licenses:

button Full-featured products
button Analysis RunTime (Limited Product)
button Student (Academic Limited Product)
button Demo (Limited Product)

License Agreement for Single User ExtendSim LicensesDownload the Single User License Agreement.

Network Licenses
A network license for multiple users / multiple computers
Network Users

A Concurrent User License allows you to install ExtendSim on any number of computers, but limits the number of concurrent users to the specified maximum.

This license type is cost-effective if you have many ExtendSim modelers whose use is infrequent or intermittent such that only a few of them would be using ExtendSim at the same time.

button A single central server must be used as the License Server. License Manager software is installed on the Server, is TCP/IP based, and runs as a service.

The ExtendSim application and files are installed either on the Server (atypical) or on any number of Client computers (typical). In either case, the License Manager automatically limits concurrent users to the maximum allowed. When one concurrent user finishes use, the license is returned to the pool for use by another.


The ExtendSim Network License also:


Allows remote or mobile users to export or "check out" a license from the network for off-line usage (such as for a laptop taken off site) while maintaining adherence to the ExtendSim License Agreement.

button Gives information on the number, location, and identity of current users.
button Provides utilization statistics so you can determine if the appropriate size license is being used.
button Notifies you when your maintenance renewal date has been reached.
button Allows you to easily increase the number of concurrent users.

Network Licenses require an annual Maintenance Plan. For the first year, maintenance is included in the price of the license. After the first year, Maintenance is billed annually at 20% of the cost of a then-current license. (Policy on late or lapsed Maintenance.)

button A Network License must be installed and used within a single, specified continent: Africa, Asia, Australia, Europe, North America, or South America.
button Use over the internet is prohibited. See the ExtendSim ASP license if you wish to provide access to ExtendSim over the internet.
button In the USA, Imagine That Inc. is the sole source for network licenses.
button Full-featured products are the only ExtendSim products available as concurrent user licenses.

License AgreementDownload the Network License Agreement.


Distributed Analysis Licenses

ExtendSim ASPASP (Application Service Provider) / SaaS (Software as a Service)

An ExtendSim ASP license gives the licensee the right to access or to provide access to the functionality of ExtendSim over the internet or an intranet through a front end (wrapper) application.

Learn more about the ExtendSim ASP license.


ExtendSim Distributed Analysis Analysis RunTime

The Analysis RunTime license is a cost-effective way to access ExtendSim functionality without having to purchase the full version of ExtendSim. An Analysis RunTime license is used to:

button Experiment with a model built in a full version
button Boost the performance of your full version of ExtendSim by off-loading or distributing extensive model analysis runs to a computer other than your primary computer
button It is also useful in any situation where you want a front end application to communicate with ExtendSim "behind the scenes"

Learn more about the ExtendSim Analysis RunTime license.


OEM ExtendSimOEM (Original Equipment Manufacturer)

The OEM license is for system builders who want to embed the simulation power of ExtendSim within their own applications. This license gives you the customized right to use and/or sell your product bundled with ExtendSim under your branded name.

Learn more about options for OEMing ExtendSim.

Custom License Rights Custom License Rights

.These custom licenses give you the right to distribute either the Student version of ExtendSim on a CD.

button Student distribution right
button Right to distribute the Student version of ExtendSim with a book or textbook

For more details and pricing, see the complete description of each custom license right under ExtendSim Product Line.