Legal

Privacy policy

v2.0.1

December 17, 2025

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Privacy Policy

Quanthome SA

1. Who We Are and Scope of This Policy

Your privacy matters to us. As data controller, Quanthome SA ("Quanthome", "we", "us") is committed to processing the personal data you share with us transparently and in accordance with applicable law.

What This Policy Covers

This Privacy Policy (the "Policy") explains how we collect, use, store and share your personal data when you:

Visit our website www.quanthome.com (the "Site")
Use the Quanthome Platform (building-level data and analytics, portfolio modules, dashboards, etc.)
Use Quanthome AI (our conversational interface and related AI tools)
Access our API or other developer tools
Interact with us in any other way (for example, by email, demo calls, events, or support)

Together, we call these services the "Services".

Your Consent

By accessing or using the Services, you acknowledge that your personal data will be processed in accordance with this Policy. If you do not agree, please refrain from using the Services.

For questions about this Policy or your rights, you can contact us using the details above.

2. What is Personal Data?

"Personal data" or "Data" means any information relating to an identified or identifiable person. That can include:

Information that directly identifies you (e.g. name, email address, phone number), or
Information that indirectly identifies you when combined with other data (e.g. IP address, account IDs, usage logs)

3. What Data We Collect

We collect several types of Data in connection with the Services.

3.1 Data You Provide Directly

When you create an account, sign a contract, request a demo, use Quanthome AI, or otherwise communicate with us, we may collect:

Identification and Contact Details

First name and last name
Company / employer name and role
Business email address
Business phone number
Postal address (e.g. for invoicing)

Account and Subscription Information

Login credentials (email, hashed password)
User role, permissions and team membership
Subscription plan, billing contact, and contract information

Content and Communications

Messages and attachments you send us by email or through support channels
Information you provide during demos, surveys, events, or feedback sessions

Payment and Billing Information

Billing contact, company billing details, VAT number
Payment information transmitted via our payment provider (we do not store full card numbers)

Note: Providing some of this information may be mandatory to create an account or enter into a contract with us. If you do not provide it, we may be unable to provide some or all Services.

3.2 Data Processed When You Use Quanthome AI and Our Analytics Tools

When you use Quanthome AI, the Platform or related tools, we process:

Inputs

Prompts and questions you type in the interface
Configuration choices (e.g. models, filters, query parameters)

Outputs

Model-generated responses
Generated reports, charts and exports
System messages and error logs

Usage Data

Date and time of interactions
Features used, buttons clicked, usage volumes (e.g. number of queries, Qredits consumed)
Associated account / organisation ID

⚠️ Important: Please refrain and ensure that users refrain from inserting any personal data in prompts and inputs. You are solely and exclusively liable to ensure that any and all prompts provided to Quanthome AI comply with any applicable data protection laws and do not infringe third parties' rights. We have no control upon such prompts and inputs and expressly prohibit the use of personal (and/or) confidential data into any such prompt and input.

3.3 Technical and Device Information

When you access the Site or Services, we automatically collect:

IP address
Device identifiers, browser type and version, operating system
Referrer URL
Log data (timestamps, error logs, performance data, security events)

3.4 Cookies

By using a Quanthome Site, you are consenting to our use of cookies and other tracking technology in accordance with this policy. If you do not agree to our use of cookies and other tracking technology in this way, you should set your browser settings accordingly or not use the Quanthome Site. If you disable cookies that we use, this may impact your user experience while on the Quanthome Site.

What Are Cookies?

Cookies are small text files that are placed on your computer by websites that you visit. They are widely used in order to make websites work, or work more efficiently, as well as to provide information to the owners of the site.

Types of Cookies We Use

Essential Cookies

Necessary for our website's operation.

Functional Cookies

Improve our Site's functioning, like remembering previously viewed content or registration details. These cookies enable personalized content and save you time by not needing to register again during future visits. We also use cookies for analytics and advertising.

Statistical Cookies

These help us understand how visitors interact with our Site, providing information on visited pages, time spent, and any issues, such as error messages. This aids in improving our Site's performance.

Third-party Cookies

Set by third parties we use for various services (e.g., Site analysis or advertising). QUANTHOME uses Google Analytics cookies, which provide information on user activities without identifying them. Google Analytics cookies don't collect Data about Site visitors.

4. Why We Process Your Data (Purposes and Legal Bases)

We process your Data for the following purposes and legal bases under Swiss law and, where applicable, the GDPR:

1. Providing and Operating the Services

Creating and managing user accounts
Providing access to the Platform, Quanthome AI and our APIs
Delivering insights, analytics and reports
Processing payments and managing subscriptions

2. Security, Abuse Prevention and Compliance

Detecting and preventing fraud, misuse and security incidents
Protecting the integrity and availability of our infrastructure
Enforcing our Terms of Service and EULA
Responding to lawful requests from authorities

3. Communicating with You

Responding to your questions and support requests
Sending service and transactional messages (e.g. security alerts, billing notifications)
Sending marketing communications where allowed (and giving you an easy way to opt out)

4. Analytics and Statistics

Measuring performance and usage of our Services
Producing aggregated, anonymised statistics about the real-estate market for business intelligence and research

Note on Consent: Where we rely on your consent (for example for certain marketing communications), you may withdraw it at any time by following the instructions we provide (unsubscribe link, or by contacting us).

5. How We Use Data in Relation to Generative AI

Our Default Principle

We do not train Generative AI models on your data (including prompts, outputs and datasets you connect) for the benefit of other customers.

We may, however, use aggregated and anonymised usage statistics (e.g. how often a feature is used, generic error patterns) to improve the Services.

Content Review for Safety and Compliance

To keep the Services safe and comply with our legal and ethical obligations, we may automatically and, in some cases, manually review content:

To detect abuse (e.g. attempts to misuse the system, security threats, spam)
To prevent violations of our terms or applicable law
To protect Quanthome, our customers and third parties

6. Who We Share Your Data With

We do not sell your personal data.

We may share your Data with:

1. Service Providers (Processors)

Email delivery and communication tools
Analytics and monitoring tools
Payment processors
Authentication and user management services
AI infrastructure providers or model hosts

These providers process Data only on our instructions and under appropriate data-protection agreements.

2. Your Organisation and Authorised Users

If you use the Services through your employer or organisation, certain Data (e.g. your name, role, activity logs, content created) may be visible to admins or other users within that organisation, according to the configuration they choose.

3. Professional Advisers

Lawyers, auditors, insurers or other advisers where necessary to protect our rights or comply with our obligations.

4. Authorities and Legal Requests

Where required by law or in response to lawful requests from courts or authorities, or to protect our rights or the rights of third parties.

5. Business Transfers

In connection with a merger, acquisition, financing or sale of all or part of our business, personal data may be transferred as part of the transaction. Where reasonably possible, we will inform you in advance.

7. Where Your Data is Stored

Our core infrastructure is hosted in Switzerland.

However, some service providers or AI infrastructure may be located in other countries (including countries outside the EEA and Switzerland). In such cases we take steps to ensure an adequate level of protection, for example:

Using standard contractual clauses or equivalent approved mechanisms
Assessing the level of protection and implementing additional safeguards where appropriate

Important Notice About Quanthome AI

You understand that Quanthome AI being built upon pre-existing models, the access and use of that services, which is at your entire discretion, shall result in your data being transferred out of Switzerland, notably in the United States of America.

It is up to you to assess whether you agree with such transfer and whether such transfer is authorized under the laws and regulation you are subject to.

Your access and use of Quanthome AI shall be considered as an acceptance of such transfer and you shall bear any and all liability for any resulting transfer that may not be allowed under laws and regulation to which you are submitted.

We shall indemnify and hold us, our directors, officers and representatives harmless from any prejudice we may suffer as a result of such transfer in breach of laws and regulations that apply to you and your users.

8. How Long We Keep Your Data

We retain personal data only for as long as necessary to fulfil the purposes described in this Policy, including:

Account and contract data: For the duration of the contract and for the limitation period required by law
Usage and log data: For shorter periods necessary for security, troubleshooting and analytics, usually from a few months up to 3 years, unless a longer period is required or permitted by law
AI prompts and outputs: For providing the Services (such as conversations history)

9. Your Rights

Under Swiss law and, where applicable, the GDPR, you have the following rights in relation to your personal data:

Right of Access

To obtain confirmation whether we process Data about you and receive a copy

Right to Rectification

To correct inaccurate or incomplete Data

Right to Erasure ("Right to be Forgotten")

To request deletion of your Data, subject to legal retention obligations

Right to Restriction of Processing

In certain cases under the GDPR only

Right to Object

To certain processing based on our legitimate interests, on grounds relating to your particular situation under the GDPR only

Right to Withdraw Consent

Where processing is based on your consent; withdrawal does not affect prior processing

How to Exercise Your Rights

To exercise your rights, please contact us at contact@quanthome.com. We may need to verify your identity before responding.

10. Children's Privacy

Our Services are intended for professional use and are not directed at children under the age of 16. We do not knowingly collect personal data from children.

If you believe a child has provided us with personal data, please contact us so we can delete it.

11. How We Protect Your Data

We implement appropriate technical and organisational measures to protect your Data against unauthorised access, loss, misuse or alteration, including:

Encryption in transit and at rest where appropriate
Access controls and authentication
Regular backups
Monitoring and logging of security-relevant events
Internal policies and staff training

Your Responsibility: You are responsible for keeping your login credentials confidential and for notifying us promptly of any suspected unauthorised use of your account.

12. Changes to This Policy

We may update this Policy from time to time to reflect changes in our Services, our practices, or legal requirements. The "last updated" date at the top of the Policy indicates when it was last revised.

We will notify you of material changes (for example by email or through the Services) and, where required by law, seek your consent.

Your continued use of the Services after an update means you accept the revised Policy.

13. Contact

For any questions, requests or concerns about this Policy or our use of your personal data, you can contact us at:

Quanthome SA
Avenue de Mon-Repos 24
1005 Lausanne, Switzerland

Email: contact@quanthome.com
Phone: +41 (0)21 312 16 93

Company: Quanthome SA
IDE: CHE-321.617.538
Registered Office: Lausanne, Switzerland