Privacy Policy

1. Who we are

Depth (“we”, “us”) is operated by [Legal entity name], registered at [Registered address]. We are responsible for the personal data described in this policy.

2. Data we collect

• Account details: your name and email address when you create an account, and your school or organization if an account is created through a Schools plan.
• Problems and solutions: the math problems and messages you submit, and the 3D models and step-by-step solutions generated for them.
• Usage data: pages and features you use, device and browser type, and approximate location derived from your IP address.
• Payment details: handled by our payment provider, [Payment provider]. We never see or store your full card number.
• Messages to us: what you send when you contact us by email, Telegram or the contact form.

3. How we use your data

• To provide Depth: solve your problems, build 3D models and keep your solution history.
• To run your account and plan, including billing and renewals.
• To answer your messages and provide support.
• To keep Depth secure and prevent abuse.
• To improve Depth, for example by understanding which topics and features are used. [Confirm whether submitted problems are used to improve the math engine.]
• To send product updates, which you can unsubscribe from at any time.

4. Cookies and local storage

We use essential cookies and local storage to keep you signed in and remember your preferences, such as your language. [List analytics tools, if any, e.g. “We use [Analytics provider] to understand how the site is used.”] We do not use advertising cookies. [Confirm.]

5. How we share data

We do not sell your personal data. We share it only when needed to run Depth:

• Service providers: hosting ([Hosting provider]), payments ([Payment provider]), email delivery and spam protection for the contact form, under contracts that protect your data.
• Schools: if your account is provided by a school, the school’s administrators may see your account details and usage.
• Legal reasons: when required by law or to protect the rights and safety of our users.

6. Students and children

Depth is built for students. Users under [16] should use Depth with the consent of a parent or guardian, or through their school. Schools that create accounts for students are responsible for obtaining the required consent. If you believe a child has given us personal data without consent, contact info@depthland.com and we will delete it.

7. How long we keep data

We keep your data while your account is active. After you delete your account, we delete or anonymize your personal data within [30] days, unless we must keep some of it longer by law (for example, billing records).

8. Your rights

You can ask us to access, correct, export or delete your personal data, or object to how we use it. Send your request to support@depthland.com and we will respond within [30] days.

9. Security

We protect your data with encryption in transit (HTTPS), access controls and regular updates. No online service is completely secure, but we work to keep your data safe.

10. Where data is stored

Your data is stored on servers located in [Country]. [Describe any international transfers and safeguards, if applicable.]

11. Changes to this policy

We may update this policy from time to time. We will change the “Last updated” date above and, for significant changes, notify you by email or in the app.

12. Contact

Questions about privacy: info@depthland.com, or by post to [Legal entity name], [Registered address].