Privacy Policy

Last updated: October 20, 2026

Vivancedata Learn (“we”, “us”) is the learning platform at learn.vivancedata.com, run by Vivancedata. This page explains what we collect, why, which companies process it for us, and what you can ask us to do with it. Questions go to support@vivancedata.com.

What we collect

Your account

When you sign up we store your email address, your name if you give one, your GitHub username if you add one, and your password as a bcrypt hash (we never store or see the password itself). We record whether you have verified your email.

Your learning activity

To run the courses we store your progress through lessons, courses and learning paths, quiz and assessment answers and scores, XP, levels, streaks, achievements and certificates. If you post in discussions, submit a project or give community points, we store that content.

AI tutor conversations

If you use the AI tutor, we store your conversations so you can return to them, and count your messages per day to apply the daily limit. Each message, with the lesson context it relates to, is sent to an AI model provider to generate the reply: Anthropic (Claude) by default, or OpenAI if Anthropic is unavailable. Don’t put personal or sensitive information in tutor messages.

Payments

If you buy a subscription, Stripe handles checkout and stores your payment details; we never see or store your full card number. We store your Stripe customer and subscription IDs, the plan, its status and billing-period dates, and a log of the Stripe webhook events that update them.

Emails and notifications

We send account emails (verification, password reset) through Resend, and store the delivery events Resend reports back. If you turn on push notifications, we store the push subscription your browser gives us so we can send them, and your notification preferences.

Technical data

Sign-in cookie. An HTTP-only auth-token cookie keeps you signed in for up to 7 days. It is required for the site to work.
Rate limiting. To stop abuse, requests are counted per IP address (and per account for some actions) in a short-lived store (Upstash Redis, or server memory if Redis is unavailable). The counters expire within minutes.
Error monitoring. We use Sentry to find and fix errors. When something breaks, Sentry receives the error, your browser and device type, the page, and, if you are signed in, your account ID, email and name. When an error happens in your browser, Sentry may also keep a replay of the moments before it, with all text and form inputs masked and images blocked. We do not record sessions where no error occurs. The “Report an Issue” button sends Sentry whatever you write in it.

Analytics

We use PostHog to understand which pages and lessons get used. In your browser, PostHog does not load until you choose Allow in the analytics banner. With your consent it sets a cookie and local storage entry, and records page views, clicks and the page you came from, never what you type into fields, and never a recording of your session. If you are signed in, those events are linked to your account ID, email and name. If your browser sends Do Not Track, PostHog does not capture anything even after you allow it.

Separately, our servers send PostHog a small set of learning events (lesson completed, quiz completed, project submitted, streak and level changes) linked to your account ID, not your email, so we can see how courses are used. These do not depend on the browser banner.

Who processes your data

We use these companies to run the service. Each processes data only to provide its part:

Vercel: hosting and serving the site
A managed PostgreSQL provider: our database
Upstash: rate-limit counters
Stripe: payments and billing
Resend: account emails
Sentry: error monitoring
PostHog: product analytics
Anthropic and OpenAI: AI tutor replies

Some of these companies are in the United States, so your data may be processed there. We do not sell your personal information or share it for advertising.

What others can see

Your name appears on the public leaderboard unless you ask us to hide it. Discussion posts, replies and submitted projects are visible to other learners. A certificate’s verification code shows your name and the course to anyone who looks it up.

How long we keep it

We keep your account and learning data while your account exists. Billing records may be kept longer where tax or accounting rules require it. Sign-in cookies last up to 7 days, and rate-limit counters last minutes. Error and analytics data is kept for the retention period of our Sentry and PostHog plans.

Your choices and rights

Change your name and profile details in Settings.
Allow or refuse browser analytics with the control above.
Turn push notifications off in Settings or in your browser.
Email support@vivancedata.com to get a copy of your data, correct it, remove your name from the leaderboard, or delete your account. Deletion removes your account and the learning data linked to it; we will confirm by email.

Depending on where you live (for example the EU, the UK or California), you may have further rights, including to object to processing or to complain to a data protection authority. Contact us first and we will help.

Children

The platform is not meant for children under 13, and we do not knowingly collect their data. If you believe a child has signed up, contact us and we will delete the account.

Changes

If we change how we handle data, we will update this page and the date above. For significant changes we will tell signed-in users by email or on the site.