Privacy Policy

Design Simulation Technologies, Inc.

This Privacy Policy explains how Design Simulation Technologies, Inc. (“DST”, “we”, “us”) collects, uses and shares personal information through our web site, our online store and ordering process, our desktop products (including license activation), and the web versions of Interactive Physics and Working Model 2D. It applies alongside our Terms and Conditions of Sale, End User License Agreement (EULA) and Terms of Service.

1. How we collect and use your information

We will not sell or rent your personal contact information to other companies. We will not disclose your personal contact information to other companies, except in the limited manner and for the limited purposes described below.

Web site forms. This web site has several forms (for example, quote requests, evaluation requests and support requests) that may ask for contact and other information. We use it to respond to your request and, as described in section 3, to send you information about DST products.

Purchases. When you order from DST, online or by quote or invoice, we collect your name, organization, email address, billing address, phone number and, for products that use a hardware key (dongle), a shipping address. We use this information to process your order and payment, deliver your product (by emailing a download link for electronic delivery, by enabling access for web products, or by shipping a dongle), manage subscriptions and renewals, provide support, keep business and tax records, and contact you about your purchase. Online card payments are handled by our third-party payment processor, and DST does not receive full card numbers. For phone or fax orders, DST staff see the card details only to process the payment and destroy them immediately afterwards; DST does not retain card numbers.

License activation. When you activate, transfer or revoke a license for a desktop product, the Software sends us identifiers for your computer or hardware key, and we may record your name and email address with them. License keys are issued at this point, after installation, not at purchase. We use this information only to issue and verify licenses, enforce license limits, and help you move or recover a license.

Marketing. If you have purchased our software, requested an evaluation, or asked for information, we may send you news about DST products, updates, events and related information. We may also tell you about third-party products and services related to DST products, but we send these ourselves; we do not give your contact information to those third parties for their own marketing. You can opt out at any time (section 3).

IP addresses, logging and cookies. We use your IP address to administer our web site and, occasionally, to help diagnose problems with our server. We may use data collected in web server log files, JavaScript code and cookies to analyze visitors’ behavior to better understand their needs. DST uses a third-party web traffic analysis company to log aggregate information coming through our site on our behalf. DST controls how that data may and may not be used. We do not link this data to personally identifiable information; the data is used to analyze web site traffic and navigation trends such as, but not limited to, your referring URL, the Internet browser being used, and the type of operating system used. When you visit the DST web site, one or more cookies may be placed on (or read from) your device if your browser is set to accept cookies. A cookie is a small data file that we transfer to your device through your web browser. These cookies do not store personal information; they consist of a simple code that is used to access or maintain current session data, gather broad demographic information, and help analyze web site traffic. DST may use such non-personal information for purposes including market research and improving the content of our web site.

Although web browsers typically allow cookies by default, most browsers let you decline cookies if you prefer. If you do, you may not be able to use all features of this web site or other web sites you visit.

Links. The DST web site contains links to other sites such as universities and other businesses. We do not control their privacy practices, so we urge you to learn about them before leaving your contact information with those sites.

2. How we share your information

We share personal information only as follows:

• Service providers who act on our behalf and only for that purpose, such as our payment processor, web hosting provider, email provider, web analytics provider and shipping carriers (for dongle shipments).
• Distributors: if you request an evaluation in a territory served by a DST distributor, we share your contact information with that distributor so it can help with your evaluation. For purchases, we share your information with a distributor only when that distributor holds exclusive rights to your territory.
• Legal and protective disclosures, where DST believes that use (i) violates the terms and conditions of use of the DST web site or our products, (ii) is used to commit unlawful acts, or (iii) must be disclosed to comply with applicable laws or regulations, or with a court or administrative order.
• Component suppliers: we may share your company name and location with suppliers of components licensed into our products, for royalty reporting to them.
• Business transfers, if DST or its business is sold or merged, subject to this Policy.
• Aggregate information that does not identify you.

3. Your choices and how to opt out of marketing

DST sends different types of email and postal mail, including electronic and printed newsletters and event announcements. You may choose not to receive them. Every marketing email includes an unsubscribe link, or you can email info@design-simulation.com with “Unsubscribe” in the subject. Opting out of marketing does not stop messages we must send about your orders, licenses, renewals or support requests.

4. How long we keep your information

We keep order, invoice and license records for as long as your license or subscription is active and afterwards for as long as needed for tax, accounting, warranty and legal purposes (generally up to seven (7) years). We keep marketing contact information until you opt out or ask us to delete it. Web server logs are kept for a limited period for security and diagnostics. Information kept on your device by the web applications (section 7) is under your control.

5. How we protect your information

DST has security measures in place to protect against the loss, misuse and alteration of the contact and other information under our control. If you would prefer to give your information by telephone, you may call 1-734-446-6935.

6. Your rights

Depending on where you live (for example, in the European Economic Area, the United Kingdom, or California and other U.S. states with privacy laws), you may have the right to ask us to: tell you what personal information we hold about you and how we use it; give you a copy of it; correct it; delete it; restrict or object to certain uses, including direct marketing; and withdraw consent where we rely on consent. We do not sell personal information or share it for cross-context behavioral advertising, and we will not treat you differently for exercising your rights. Where EU or UK law applies, we use your information to perform our contract with you, to meet legal obligations, for our legitimate interests in running and promoting our business, or with your consent. Your information is processed in the United States.

To make a request, or to correct, update or remove your contact information, email info@design-simulation.com or write to Design Simulation Technologies, Inc., 43311 Joy Road, #237, Canton, MI 48187, USA. Please include your name and the email or postal address concerned. We may need to verify your identity, and we will respond within the time the law requires. You may also have the right to complain to your local data protection authority.

7. Interactive Physics and Working Model 2D on the web

Interactive Physics and Working Model 2D are also available as web applications that run in your web browser at design-simulation.com (the “web applications”). This section explains what information the web applications use and how.

Information kept on your device. The web applications run simulations entirely in your browser. Models you open, edit and run stay on your device unless you choose to save them somewhere else. To make the web applications easier to use, your browser keeps a few settings on your device, such as your chosen language, your place in the model library and your display preferences. It also keeps a copy of the web application and of models you have opened, so they work offline. This information is not sent to us. You can remove it at any time by clearing your browser’s site data for design-simulation.com.

Information we receive. The web applications are delivered through our hosting provider. Like most web servers, our hosting provider may record standard technical information when you load a web application, such as your IP address, browser type, and the time and address of each request. We use this information only to operate and secure the service, and we do not link it to personally identifiable information. License administrators’ and named users’ account details (such as name and email address) are used to manage licenses and seats as described in section 1.

Devices. Each license is for one person and can be used on a limited number of devices. To manage this, we keep a record of the devices you use the web applications on and when you last used them, along with general network information, which we keep for a limited time.

Google Drive and Microsoft OneDrive. If you choose to open or save models with Google Drive or Microsoft OneDrive, the web application asks for your permission through Google’s or Microsoft’s sign-in.

• What we access: only the files you select with the service’s file picker and the files you save with our web applications.
• How we use it: only to open the models you choose and to save the models you ask us to save.
• Where it is stored: your files stay in your own Google Drive or OneDrive. The web applications read and write them directly from your browser. We do not copy them to our servers. The permission you grant is held in your browser for your session and is not stored by us.
• Sharing: we do not sell, share or transfer your files or account information from these services to anyone, and we do not use them for advertising.
• Artificial intelligence: we do not use your files or account information from these services to develop, improve or train artificial intelligence or machine-learning models.
• Removing access: you can stop the web applications’ access at any time. Files already saved remain yours to keep or delete.
  • Google: in your Google Account, under Security, “Your connections to third-party apps & services”, at myaccount.google.com/connections.
  • Microsoft personal accounts: in your Microsoft account’s app permissions, at account.live.com/consent/Manage.
  • Microsoft school or work accounts: through My Apps at myapps.microsoft.com, or by asking your school’s administrator.

Google Drive. We use Google’s drive.file permission, which does not allow access to any other files in your Google Drive. Design Simulation Technologies’ use and transfer of information received from Google APIs to any other app will adhere to the Google API Services User Data Policy (https://developers.google.com/terms/api-services-user-data-policy), including the Limited Use requirements.

Students and schools. Our web applications are used by students, including children under 13. The web applications do not ask students for personal information in order to run models. Where a school provides a web application to its students, the school is responsible for any consent required for students’ use of Google Drive or Microsoft OneDrive under its own policies and applicable law, such as the Children’s Online Privacy Protection Act (COPPA) and the Family Educational Rights and Privacy Act (FERPA). Parents and schools can contact us using the details below to ask about, or remove, any information related to a student.

8. Changes to this Privacy Policy

DST may make improvements or changes to the information, services, products and other materials on the DST web site at any time. We may update this Privacy Policy; we will post the new version here with its “Last updated” date. If we make a material change to how we use or share personal information we have already collected, we will notify affected customers and license administrators by email, or by a notice on this site, at least thirty (30) days before it takes effect.

9. Order of precedence

This Privacy Policy governs how DST handles personal information. For everything else, DST’s other documents apply in this order: a signed Master License; your quote, order or invoice; the EULA (desktop products) or Terms of Service (web products); the Terms and Conditions of Sale. Terms on any purchase order or other document issued by a customer do not apply unless they are in a Master License or agreed to in writing by DST.

10. Contact

Questions about this Privacy Policy or our practices: info@design-simulation.com, or Design Simulation Technologies, Inc., 43311 Joy Road, #237, Canton, MI 48187, USA, phone 1-734-446-6935. Technical support: support@design-simulation.com.

Last updated: November 2026

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