Privacy policy

We collect as little as possible, we take extra care with children's data, and this website does not track you.

Last updated 15 October 2026

Who we are

Math Mastery for All (“we”, “us”) is a free, student-led maths education programme at mathmasteryforall.in, founded and run by Tanish Jain. For any privacy question, or to use any of your rights below, email nikhiltanish.jain@gmail.com.

What this website collects

  • No sign-up. You can use every page, worksheet, paper and test without telling us who you are. Student logins are optional and are made only by teachers, with a parent's consent (see Student accounts).
  • No analytics or advertising trackers on our pages. We do not use Google Analytics, Facebook pixels or any similar tool, and we show no adverts. The only cookie is the login cookie described below, and it is set only when someone logs in.
  • Hosting logs. The site is hosted on Cloudflare Pages. Like any web host, Cloudflare processes technical data such as IP addresses and browser type to deliver pages and protect the site from attacks. We do not use this data to identify visitors.
  • Video lessons. Our lessons are hosted on YouTube. Nothing loads from YouTube until you press play on a video. When you do, the video plays in YouTube's privacy-enhanced mode, and Google's privacy policy applies to that video.
  • Settings on your device. Your browser's own local storage remembers a few things so the site works better for you: the grade you last chose, your last test settings and recent test scores, and a list of short codes for the practice questions already shown, so that new tests don't repeat them. None of this leaves your device. You can clear it at any time in your browser settings, or with Forget them on the test page. If you log in, your browser also remembers the name shown in the menu, so the site can show it.

Student accounts

Teachers in our programme can give their students a login, so that a student's practice is saved and the teacher can see how they are doing. Logging in is always optional.

  • Who makes accounts. Only a teacher or our programme administrator can create a student account, and only after confirming that a parent or guardian has given consent. We record when that confirmation was made and by whom.
  • What we store. A username, the name the teacher enters (we ask for first name and last initial only), the grade if given, and the password in scrambled (hashed) form that cannot be turned back into the password. We do not ask for email addresses, phone numbers, schools or dates of birth. While a student is logged in, we save each test they mark and each problem they check: the questions, their answers, the right answers, how many hints they opened on each question, roughly how long they spent on each question, their score, the total time and the date. If a teacher sets homework, we store its title, the settings of the paper (grade, topics, length, style), an optional due date, which students it is for, and whether each student has handed it in, linked to the marked test that handed it in. Nothing is recorded about what they type before they mark the test or check the answer.
  • Who can see it. The student, the teacher who looks after them, and our programme administrator. No one else, and it is never published.
  • The login cookie. Logging in sets one cookie, which holds a random code that keeps you logged in for up to 14 days. It is strictly necessary for the login to work, is not used for tracking, and is deleted when you log out.
  • Where it is kept. In a Cloudflare D1 database, run by Cloudflare as our hosting provider.
  • How long. Until the account is deleted. A teacher can delete a student's account and everything saved about them at any time, and a parent or guardian can ask us to do it by email; we will do so within 7 days.

When you email us

If you email us, or use the feedback form (which only opens your own email app), we receive your email address and whatever you choose to write. We use it only to reply, to arrange tutoring or partnerships you ask about, and to improve the programme. We keep emails for up to 12 months after our last contact, unless you ask us to delete them sooner.

Children's personal data

Most of our students are children. In line with India's Digital Personal Data Protection Act, 2023:

  • We process a child's personal data only with the verifiable consent of a parent or lawful guardian.
  • We never track, profile or behaviourally monitor children, and never target advertising at them.
  • On our Results page we show a child's first name, last initial and grade only, and only with written consent from a parent or guardian. We do not publish full names, schools, photographs or ranks of children.
  • A parent or guardian can withdraw consent at any time by emailing us, and we will remove the child's details from this website promptly, and within 7 days.
  • Detailed contest results are shared only with the child's own parent or guardian, on request.

We ask children not to send us personal information. Volunteers under 18 should contact us with a parent or guardian copied in.

Sharing

We do not sell, rent or trade personal data. We share it only when a parent or guardian asks us to (for example, to help register their child for a contest), or when the law requires it.

Links to other websites

Some pages link to other sites, such as news articles and answer keys hosted on Google Drive. Those sites have their own privacy policies, which apply when you visit them.

Your rights

You can ask us to tell you what personal data we hold about you or your child, to correct it, or to erase it. You can also nominate someone to exercise these rights on your behalf. Email nikhiltanish.jain@gmail.com and we will respond within 30 days. If you are not satisfied with our response, you may complain to the Data Protection Board of India.

Security

The website is served only over encrypted HTTPS connections. We keep the little personal data we receive by email in a password-protected email account with two-step verification, and only the founder has access. Account passwords are stored only in hashed form, repeated wrong guesses are slowed down, and teachers can see only their own students.

Changes to this policy

If we change this policy we will update it on this page and change the date at the top.