Privacy policy

Welcome to 3str.net (“we”, “us”, “our”). We respect your privacy and are committed to protecting it. This policy explains what personal information we collect, how we use it, and the rights you may have.

Questions? Email us at hello@3str.net.

Who we are

• Website: https://3str.net/
• Entity name: Threestudio
• Registered address: 44B, 354 Truong Chinh, Dong Da, Hanoi

Scope

This policy applies to personal information collected through our website, products, and services that link to it, as well as our marketing activities and customer support.

The information we collect

1) Information you provide

• Account or contact details (name, email, phone, company)
• Content you submit (messages, forms, support requests)
• Billing details (billing address, VAT/Tax ID). Payment card data is processed by our payment provider; we do not store full card numbers.

2) Information collected automatically

• Usage data (pages viewed, links clicked, time on page)
• Device and technical data (IP address, browser, operating system)
• Cookies and similar technologies (see Cookies below)
• Approximate location (derived from IP address)

3) Information from third parties

• Analytics or advertising partners
• Payment and fraud-prevention providers
• Social sign-in/identity providers (if you choose to connect)

Cookies & similar technologies

We use cookies, local storage, and similar technologies to:

• Keep you signed in and remember preferences
• Measure site performance and improve features
• (Optional) Personalize content or ads (if enabled)

Example categories:

• Essential: authentication, security, load balancing
• Analytics: traffic, usage patterns (e.g., Google Analytics)
• Marketing (optional): remarketing pixels, conversion tracking

You can control cookies in your browser settings. If you block essential cookies, parts of the site may not work.

How we use your information

• Provide, operate, and maintain the website and services
• Respond to inquiries and provide support
• Improve and personalize content and features
• Process payments and prevent fraud/abuse
• Send administrative and transactional messages
• (With your consent or where permitted) send marketing communications
• Comply with legal obligations

Legal bases for processing (EEA/UK/Swiss users)

• Contract (to provide services you request)
• Legitimate interests (e.g., securing and improving our services, preventing fraud)
• Consent (e.g., non-essential cookies/marketing where required)
• Legal obligation (e.g., tax and accounting records)

You can withdraw consent at any time where applicable.

Sharing & disclosure

• Service providers (hosting, analytics, email delivery, payment processing, customer support)
• Professional advisers (lawyers, accountants, auditors)
• Authorities when required by law or to protect rights, safety, or security
• Business transfers (e.g., merger, acquisition, or asset sale)

We do not sell personal information for money. If we use cookies or ad tech that may be considered a “sale” or “sharing” under California law, see Your privacy rights (California) below for opt-out options.

International transfers

If we transfer your information internationally, we use appropriate safeguards (e.g., EU Standard Contractual Clauses, UK IDTA/Addendum) and perform transfer impact assessments where required.

Data retention

We keep personal information only as long as necessary for the purposes described above, to comply with legal obligations, resolve disputes, and enforce agreements. Retention periods vary by data category and legal requirements.

Security

We use technical and organizational measures to protect personal information (encryption in transit, access controls, monitoring). No method of transmission or storage is 100% secure.

Your privacy rights

EEA/UK/Switzerland

Subject to law, you may have the right to:

• Access, correct, or delete your personal data
• Object to or restrict certain processing
• Data portability
• Withdraw consent (where processing is based on consent)

To exercise these rights, email hello@3str.net. You also have the right to complain to your local supervisory authority.

California (CCPA/CPRA)

California residents have the right to:

• Know the categories and specific pieces of personal information collected
• Delete personal information (subject to exceptions)
• Correct inaccurate information
• Opt out of “sale” or “sharing” of personal information for cross-context behavioral advertising
• Limit the use and disclosure of sensitive personal information (if we collect it)
• Non-discrimination for exercising your rights

To make a request or to opt out, contact hello@3str.net. If we use cookies considered a “sale”/“sharing,” we will provide a “Do Not Sell or Share My Personal Information” link.

Notice at Collection (California): We collect identifiers, commercial information, internet/network activity, geolocation (approximate), and inferences. We use them for the purposes described above, retain them as outlined in Data retention, and disclose them to service providers and partners as described in Sharing & disclosure. We do not knowingly sell or share data of consumers under 16.

Children’s privacy

Our services are not directed to children under 13 (or the relevant age in your country). We do not knowingly collect personal information from children.

Do Not Track

We do not currently respond to Do Not Track signals because there is no consistent industry standard. You can manage cookies and opt-out preferences through your browser and our cookie tools (if available).

Third-party links

Our site may link to third-party sites or services we do not control. Their privacy practices are governed by their own policies.

Changes to this policy

We may update this policy from time to time. We’ll post the updated version here and update the “Effective date” above. If changes are material, we’ll provide additional notice where appropriate.

Contact us

Email: hello@3str.net
Mailing address: 44B, 354 Truong Chinh, Dong Da, Hanoi
Data Protection Officer (if applicable):  Stefan Tran / hello@3str.net

Quick reference: categories, sources, purposes