Privacy Policy

Last Updated: August 14, 2026

1. Introduction and Scope

This Privacy Policy explains how Prose Engineering Technologies, LLC ("Prose," "we," "our") collects, uses, discloses, retains, and protects personal information when you use our website, desktop application, or related services (collectively, the "Services"). This Policy applies to all users, including individual account holders and members of organizational accounts.

The Application is installed and operates locally on your device. Engineering calculations are performed on your device, and project data is stored locally. Prose does not access, transmit, or store your project data. This Policy covers only the data that is transmitted to and maintained on Prose's servers, such as account information, organization data, licensing records, and agreement-acceptance records.

2. Definitions

Account – Your unique account for accessing the Services.
Application – The Prose desktop software installed on your Device.
Device – A computer or electronic system you own or control.
Project Data – Engineering project data stored locally on your Device. Prose does not access, transmit, or store Project Data.
Prose-Hosted Data – Data transmitted to and stored on Prose's servers, including account information, organization data, and licensing records.
Organization – A company, firm, or entity that maintains an organizational account and manages users.
Personal Data – Information that identifies or can reasonably identify you, including name, email, device identifiers, and usage information.
Usage Data – Technical data collected automatically when you interact with the Services.
Controller – Prose, as the entity that determines the purposes and means of processing your Personal Data.
Processor – A service provider that processes Personal Data on Prose's behalf under written agreement.
You – The individual or Organization using the Services.

Capitalized terms not defined in this Policy have the meanings given in our End-User License Agreement (prose-eng.com/eula).

3. Personal Data We Collect

3.1 Information You Provide

Full name and email address
Organization name
Profile photo (avatar)
Role and permissions within your Organization
And similar types of information
Diagnostic files: If you contact us for technical support, you may voluntarily send us your project file (.pros) or other diagnostic information to help us reproduce and resolve issues. These files may contain Project Data including engineering inputs and calculations. We use diagnostic files solely to troubleshoot the reported issue and delete them within 30 days of issue resolution, unless you consent otherwise.

3.2 Agreement and Acceptance Records

When you accept our Website Terms of Use, End-User License Agreement, or another agreement, we may collect your Account or user identifier, the agreement name, version and publication date, canonical location, a cryptographic document identifier when available, the date and time of acceptance, and the context in which you accepted it, such as account creation, profile setup, or PDF download.

3.3 Information Collected Automatically (Usage Data)

Access times and login timestamps
Feature usage and interaction logs
IP address, browser type and version, device type, operating system
Machine identifiers used for license enforcement (to prevent a single seat from being active on multiple devices simultaneously)
Error and diagnostic details, including stack traces and performance data (collected via Rollbar). Automated error reports may incidentally include limited technical context from your Device but do not include your engineering project files or calculation results.

3.4 Local Browser Storage

We use local browser storage to remember when you dismiss a calculator notice and when you accept the current Website Terms of Use before downloading a report. These records contain the applicable Terms version and a timestamp. They are not used for advertising and remain on your Device until you clear them or they are replaced by a later version. An anonymous user's browser record is not associated with an Account. If you are signed in when you accept the Terms before downloading a report, we also create an Account-linked acceptance record on our servers.

3.5 Information We Do Not Collect

Project Data: All engineering project data, inputs, calculations, and Application Output remain on your Device. Prose does not intentionally access, transmit, or store Project Data.
Payment details: Credit card and billing information is collected and processed directly by Stripe. Prose does not store your payment card data.
Tracking or advertising cookies: We do not use cookies for advertising, analytics, or cross-site tracking. Our service providers (such as Cloudflare and Supabase) may set functional cookies necessary for security, authentication, and session management. We do not track you across third-party websites.

4. How We Use Your Personal Data

4.1 Providing the Services

Create and manage your Account and authenticate access
Enforce license terms, including verifying that a seat is not active on multiple Devices simultaneously
Process subscription payments through Stripe

4.2 Operating and Improving the Services

Monitor system performance and troubleshoot errors
Analyze anonymized Usage Data to identify trends and improve the Application
Develop new features and functionality

4.3 Communications

Send transactional emails related to your Account (e.g., password resets, subscription confirmations)
Notify you of service updates, security alerts, and required updates
Send feature announcements or product newsletters unless you opt out

You may opt out of non-essential communications at any time by using the unsubscribe link included in each email or by contacting support@prose-eng.com. Opting out does not affect transactional or service-related emails necessary to operate your Account.

4.4 Legal and Compliance

Comply with applicable laws, regulations, and legal processes
Document, administer, and enforce our Website Terms of Use (prose-eng.com/terms), EULA (prose-eng.com/eula), and other agreements
Establish, exercise, or defend legal claims and resolve disputes
Protect the rights, property, and safety of Prose, our users, and the public
Respond to lawful requests from public authorities

5. Disclosure of Your Personal Data

We do not sell your Personal Data. We share data only in the following circumstances:

5.1 Service Providers

We share data with third-party service providers who perform services on our behalf. These providers access Personal Data only as necessary to perform their designated function and are bound by confidentiality obligations.

Supabase – Authentication and data storage: Account information, organization data, licensing records, agreement-acceptance records
Cloudflare – Hosting and content delivery: IP address, access logs
Rollbar – Error tracking and diagnostics: Error logs, stack traces, device and browser information
Zeptomail – Transactional and notification emails: Name, email address
Stripe – Payment processing: Payment information (collected directly by Stripe)
Zoho Campaigns – Marketing and email campaigns: Name, email address, email engagement data (opens, clicks)

5.2 Business Transfers

If Prose is involved in a merger, acquisition, bankruptcy, or sale of all or substantially all of its assets, your Personal Data may be transferred to the successor entity. The successor will be bound by this Policy with respect to your data. We will notify you by email or prominent notice before your data is transferred or becomes subject to a different privacy policy.

5.3 Legal Requirements

We may disclose Personal Data to comply with applicable laws, respond to valid legal processes (e.g., subpoenas, court orders), enforce our Website Terms of Use (prose-eng.com/terms) and EULA (prose-eng.com/eula), establish or defend legal claims, or protect the rights, property, or safety of Prose, our users, or the public.

6. Data Retention

We retain Personal Data only as long as necessary to fulfill the purposes described in this Policy or as required by law.

Account data – Until you or your Organization requests deletion, or until your Account is terminated
Usage Data – 24 months from collection, then anonymized or deleted
Error and diagnostic logs – 30 days
Diagnostic files (.pros files) – Deleted within 30 days of issue resolution
Payment records – As required by applicable tax and financial reporting laws
Agreement-acceptance records – For the life of your Account and seven years after Account termination, or seven years after a later acceptance. We may retain them longer only when required by law, legal hold, an active dispute, or the establishment, exercise, or defense of legal claims
Local browser storage – Until you clear it or it is replaced by a later version
Anonymized analytics – Retained indefinitely (no longer qualifies as Personal Data)
Marketing preferences – Until you opt out or request deletion

Prose-Hosted Data is stored on servers located in the United States. Our services are intended for users located in the United States. If you access our services from outside the United States, you do so at your own risk and are responsible for compliance with applicable local laws.

Upon termination of your Account, we will delete or anonymize your Prose-Hosted Data within 30 days except for limited records retained for the purposes described in this Policy, including agreement enforcement, legal compliance, fraud prevention, disputes, and legal claims. We isolate such retained records from ordinary product use, restrict access to them, use them only for the applicable retention purpose, and delete them when that purpose expires. This does not affect Project Data, which remains on your Device and is not within Prose's control.

7. Security of Your Personal Data

We implement reasonable technical and organizational measures to protect your Prose-Hosted Data, including:

TLS encryption for all data in transit
Encrypted storage at rest via Supabase and Cloudflare
Limiting access to Personal Data to personnel who require it to operate and maintain the Services
Secure authentication mechanisms for your Account

No method of transmission or storage is 100% secure. While we strive to protect your data, we cannot guarantee absolute security. If we become aware of a security breach affecting your Personal Data, we will notify you without unreasonable delay and in accordance with applicable law.

Your Responsibilities: Project Data is stored locally on your Device. You are solely responsible for securing, backing up, and protecting your Device and Project Data. Prose is not responsible for loss, corruption, or unauthorized access to data stored on your Device.

8. Your Privacy Rights

8.1 Your Rights

Depending on your location and applicable law, you may have some or all of the following rights regarding your Personal Data:

Access: Request a copy of the Personal Data we hold about you
Correction: Request that we correct inaccurate or incomplete Personal Data
Deletion: Request that we delete your Personal Data, subject to legal exceptions and permitted retention of limited agreement, fraud-prevention, dispute, and legal-claim records
Portability: Request your Personal Data in a commonly used, machine-readable format
Opt-out of marketing: Unsubscribe from non-essential communications at any time

The specific rights available to you depend on the laws of your state or jurisdiction. We will honor all rights required by applicable law.

8.2 How to Exercise Your Rights

To submit a request, contact us at support@prose-eng.com. We will verify your identity before processing your request and respond within 45 calendar days. If we need additional time, we will notify you of the reason and extension period. If we decline a request, we will explain the basis for our decision. You may appeal by contacting support@prose-eng.com.

If your Account is managed by an Organization, certain requests (such as deletion) may need to be coordinated through your Organization Administrator.

8.3 Non-Discrimination

We will not discriminate against you for exercising any of your privacy rights. Exercising your rights will not affect your access to the Services or the terms of your subscription.

8.4 Additional Disclosures

We do not sell your Personal Data. We do not share Personal Data for cross-context behavioral advertising or profiling.

9. Do Not Track and Analytics

9.1 Do Not Track

Our Services do not respond to Do Not Track signals from browsers. We do not sell or share Personal Data, so Global Privacy Control (GPC) signals do not trigger any change in our data processing.

9.2 Analytics

We use anonymized Usage Data to analyze trends and usage patterns. We do not profile individual users, build advertising profiles, or share analytics with third parties.

10. Children's Privacy

Our Services are designed for qualified structural engineering professionals and are not directed at children. We do not knowingly collect Personal Data from children under 13 years of age. If we learn that we have collected Personal Data from a child under 13, we will delete that information promptly. If you believe a child under 13 has provided us with Personal Data, please contact us at support@prose-eng.com.

11. Third-Party Links

Our Services may contain links to external websites or resources. We are not responsible for the content or privacy practices of third-party sites. We encourage you to review their privacy policies before providing any personal information.

12. Changes to This Policy

We may update this Policy from time to time. We will post the revised Policy with an updated "Last Updated" date. If a change materially affects how we collect, use, disclose, or retain Personal Data, we will provide additional notice when appropriate, such as by email or a prominent notice in the Services. We will obtain consent when required by applicable law. Your continued use of the Services does not authorize us to use Personal Data in a manner materially inconsistent with the disclosures in effect when the data was collected without any notice or consent required by law.

13. Contact Us

If you have questions or concerns about this Privacy Policy, contact us at:

Prose Engineering Technologies, LLC
support@prose-eng.com
Missouri, USA

Organizational customers who require a Data Processing Agreement may contact us at support@prose-eng.com.