Privacy Policy
Effective date: April 17, 2026 · Last updated: April 17, 2026
This policy describes how StackedML ("we") handles information when you use our website and product (the "Service"). It should be read with our Terms of Service.
What we collect
- Account: email and sign-in data from you or your identity provider; optional profile fields you add.
- Learning: progress and activity in the product (e.g. attempts, bookmarks, course progress).
- Billing: if you subscribe, a payment processor handles charges; we receive subscription status and related metadata, not full card numbers on our servers.
- Technical: data needed to run and secure the site (e.g. IP, cookies/session, basic device info). We may use aggregate, privacy-oriented usage analytics.
How we use it
To provide and improve the Service, authenticate you, process subscriptions, prevent abuse, and comply with law. We do not sell your personal information as that term is commonly understood.
Who we use
We use vendors for things like hosting, authentication and storage, payments, and related infrastructure—only as needed to run the Service. Each vendor's terms may apply where relevant.
Retention and security
We keep data while your account is active and as needed for the Service and legal obligations. We use reasonable safeguards; no online service is perfectly secure.
Your choices
You may have rights under local law (e.g. access, deletion). Use in-product account and billing controls where available. We may process data in countries where our providers operate.
Children
The Service is not directed at children under the age required in your region, and we do not knowingly collect their personal information.
Changes
We may update this policy by posting a new version here and updating the date above.