Privacy Policy

Last updated: 06/20/2026

1) Introduction

This Privacy Policy explains how QS QUANTUM SATIS (“we”, “our”, “us”), operated by Quantum Satis OÜ, collects, uses, stores, and protects personal information when you visit our website or purchase products from our online store.

By using this website, you agree to the collection and use of information in accordance with this Privacy Policy.

2) Data Controller

Quantum Satis OÜ

Mõtuse tn 3, Kristiine linnaosa, Tallinn, 10619, Harju maakond, Estonia

Email: qs@qsquantumsatis.com

Registration Number: 17399868

VAT ID: EE102937929

3) Website Analytics

This website collects information to help us understand how visitors use our website.

Information collected may include:

Browser type and version
Device information
Operating system
IP address
Pages visited before accessing our website
Pages viewed on our website
Clicks and interactions
Internal links followed
Search queries
Scroll activity
Timestamps and session information

This information is provided to Squarespace, our website hosting and analytics provider, to help us analyze website traffic and improve our services.

4) Cookies

This website uses cookies and similar technologies.

Cookies are small text files stored on your device when you visit a website.

Necessary Cookies

Necessary cookies are required for the operation and security of this website and cannot be disabled.

Analytics and Performance Cookies

Analytics and performance cookies are used only after you provide consent through our cookie banner.

These cookies help us understand:

Website traffic
Visitor behavior
Site performance
User experience

Third-Party Cookies

Some cookies may be set by third-party providers integrated into our website, including Squarespace and analytics services.

Managing Cookies

You may accept, reject, or modify your cookie preferences at any time through our cookie banner or your browser settings.

You may also withdraw consent at any time.

5) Information Collected When You Place an Order

When you purchase products from our website, we may collect:

Full name
Email address
Phone number
Billing address
Shipping address
Order details
Product preferences where applicable

This information is necessary to process and fulfill your order.

We provide this information to Squarespace, our e-commerce platform provider, to facilitate order management and website services.

6) Payment Processing

Payments on this website are processed through Stripe and Squarespace Payments.

When making a purchase, payment-related information may be processed by:

Stripe
Squarespace Payments

We do not store your full payment card details.

For more information, please review:

Stripe Privacy Policy: https://stripe.com/privacy

7. Shipping and Delivery

To fulfill physical product orders, we may collect and process:

Name
Shipping address
Billing address
Phone number
Email address
Order information

This information is used solely for order fulfillment and shipping purposes.

8. Address Autocomplete

During checkout, this website may use Google Places API to provide address suggestions.

Information entered into address fields may be temporarily shared with Google to improve the checkout experience.

9. Tax Calculation Services

We use Squarespace Commerce and Stripe services for automated tax calculations.

Information used for tax determination may include:

Billing address
Shipping address
Product information
Customer name

Such information may be processed by Stripe in accordance with its privacy policies.

10. Customer Accounts

If you create a customer account on this website, we may store:

Name
Email address
Phone number
Billing and shipping addresses
Order history

This information is used to provide customer account functionality and improve customer service.

11. Abandoned Cart Notifications

If you begin the checkout process but do not complete your purchase, we may send you a reminder email if:

You entered your email address during checkout or are logged into your customer account;
The selected product remains available;
You leave the website before completing your purchase.

You may unsubscribe from these reminders through the link included in the email.

12. Marketing Communications

With your consent, we may send promotional emails, newsletters, and marketing communications.

You may unsubscribe at any time by clicking the unsubscribe link included in our emails.

13. Transactional Communications

We may send service-related emails regarding:

Account creation
Password changes
Order confirmations
Shipping notifications
Customer account activity

These communications are necessary for the performance of our contract with you and cannot be opted out of.

14. Fraud Prevention

To protect our business and customers from fraud, we may use third-party fraud detection and monitoring services, including:

Sift

For more information: https://sift.com/service-privacy

15. Website Hosting

This website is hosted by Squarespace.

Squarespace may automatically collect:

Browser information
Device information
IP address
Website activity
Referring websites

Squarespace uses this information to operate, secure, maintain, and improve its platform and services.

16. Legal Basis for Processing

We process personal data under one or more of the following legal bases:

Performance of a contract;
Compliance with legal obligations;
Legitimate business interests;
Your consent (for example, marketing communications and non-essential cookies).

17. Data Retention

We retain personal data only for as long as necessary to fulfill the purposes for which it was collected and to comply with applicable legal obligations.

In particular:

Order and accounting records may be retained for the period required under Estonian and European Union legislation;
Customer account information may be retained until the account is deleted or becomes inactive for an extended period;
Marketing data is retained until consent is withdrawn;
Cookie-related information is retained according to the applicable cookie duration.

After the relevant retention period expires, personal data is deleted or anonymized unless further retention is required by law.

18. International Transfers of Personal Data

Some of our service providers, including Squarespace, Stripe, Google, and Sift, may process personal data outside the European Economic Area (EEA).

Where such transfers occur, appropriate safeguards are implemented in accordance with the General Data Protection Regulation (GDPR), including:

Standard Contractual Clauses approved by the European Commission;
Adequacy decisions issued by the European Commission;
Other lawful transfer mechanisms permitted under GDPR.

By using this website, you acknowledge that personal data may be transferred to countries where our service providers operate, subject to applicable data protection safeguards.