Privacy Policy

Overview

Rozum.sh helps users organize YouTube videos and playlists into structured learning courses, save learning progress, and continue from where they left off. This Privacy Policy explains what information we collect, how we use it, and the choices available to users.

By using the service, you acknowledge that your information will be handled as described in this Privacy Policy.

Information We Collect

• Account information, such as email address, authentication identifiers, profile avatar, subscription plan, and account status.
• Learning activity, such as saved courses and playlists, chapter completion, course progress, playlist progress, and related timestamps.
• YouTube course information, such as video or playlist links submitted by users, video titles, thumbnails, channel details, descriptions, durations, and chapter data received from YouTube.
• Local player preferences, such as playback control settings stored in the user's browser.
• Technical and usage information, such as device, browser, pages visited, performance data, error logs, and similar diagnostic information.
• Support communications, including messages sent to us by email or through any future support channel.

How We Use Information

• To create, authenticate, maintain, and secure user accounts.
• To provide the core product features, including course creation, playlist organization, chapter navigation, and progress tracking.
• To enforce service limits, troubleshoot issues, prevent abuse, and improve reliability and performance.
• To respond to user requests, support messages, and account deletion requests.
• To analyze aggregate usage trends and improve the service experience.
• To comply with applicable legal obligations and protect the rights, safety, and integrity of the service and its users.

Cookies, Local Storage, and Similar Technologies

We use authentication cookies and related technologies to keep users signed in and protect account sessions. We may also use browser local storage to remember player preferences. Analytics, performance, and error-monitoring tools may use cookies or similar technologies according to their own technical requirements.

Third-Party Services

Rozum.sh relies on third-party providers to operate the service. These may include Supabase for authentication and data storage, Google OAuth for sign-in, YouTube and the YouTube API for video and playlist information, Vercel for hosting, analytics, and speed insights, and Sentry for error monitoring.

When users interact with YouTube content, YouTube and Google may process information under their own YouTube Terms of Service and Google Privacy Policy. We do not control YouTube's platform, content availability, embedded player behavior, or third-party tracking outside our service.

How We Share Information

We do not sell personal information. We share information only when necessary to operate the service, use trusted service providers, comply with law, protect rights and safety, investigate abuse, or complete a business transfer such as a merger, acquisition, or sale of assets.

Data Retention and Deletion

We retain account and learning information for as long as needed to provide the service, maintain legitimate records, resolve disputes, enforce agreements, and comply with legal obligations. Users can delete their profile from the profile page. Deleting a profile is intended to remove the user profile and authentication account, and may also make related learning data unavailable or subject to deletion according to our database rules and operational backups.

Security

We use reasonable administrative, technical, and organizational measures designed to protect user information. No online service can guarantee absolute security, and users are responsible for maintaining the confidentiality of their login credentials and devices.

Children

Rozum.sh is not directed to children under 13. If we learn that we have collected personal information from a child under 13 without appropriate consent, we will take reasonable steps to delete it.

User Rights and Choices

Depending on where you live, you may have rights to access, correct, delete, restrict, or object to certain processing of your personal information. You may also have the right to data portability or to lodge a complaint with a privacy authority. To request assistance, contact us at brainelo@proton.me.

Changes to This Policy

We may update this Privacy Policy from time to time. If changes are material, we will take reasonable steps to notify users through the service or another appropriate method. The updated policy will apply from the effective date shown on the page.

Contact

Questions about this Privacy Policy can be sent to brainelo@proton.me.