Privacy policy

01Scope

This policy covers the Classroom Quiz website and the live rooms created on it. By using the site you agree to the data handling described below.

02Data we collect

• Host accounts (if you create one): email, display name and a one-way hashed password — we cannot read your original password.
• Sign-in with Google, Facebook, GitHub or TikTok: only the identifier, email and name the provider shares.
• Content you create: question sets, lessons, and images/audio attached to questions.
• Live rooms: the nickname a player types, chosen answers, response time and score. Players need no account and no email.
• Contact messages: your name, email/phone (if given) and your message.
• Technical data: IP address, browser type and sign-in times — used to prevent abuse and protect accounts.

03Data that stays on your device

When you are not signed in, question sets and lessons are stored only in this browser (localStorage). We never receive a copy. Clearing browser data removes them.

04How we use data

• To sign you in and let you open your sets on any device.
• To run live rooms: show questions, score answers, leaderboards and the "who picked what" report for the room’s host.
• To reply to your messages and feedback.
• To stop spam, password guessing and other abuse (captcha, attempt limits).
• To count visits in aggregate to improve the site — only with your consent (see the Cookie policy).

05Sharing

We do not sell personal data. Question sets are visible only to people you choose; sets sent to the community are reviewed before they become public.

• Infrastructure providers (servers, file storage, email) process data on our behalf, only to run the site.
• Analytics / advertising services (if enabled) receive data only after you consent in the cookie dialog.
• Competent authorities when required by law.

06Retention

• Account data and question sets: until you delete them or ask us to delete your account.
• Live rooms: rooms expire after the lesson; results are kept only so the host can review them.
• Security logs (sign-ins, sessions): kept as long as needed to investigate incidents.

07Your rights

• View and edit your account details on the Account page.
• Sign out of every device at any time.
• Ask for a copy of, or deletion of, your personal data through the Contact page.
• Withdraw consent for analytics/advertising cookies at any time.

08Players and children

Players joining a room need no account and no personal information. Hosts should ask players to use nicknames rather than full names or other identifying details.

09Changes

When this policy changes we update the date at the top. Important changes are announced on the site.