We do not track learners or teachers.

• Nothing a learner does in a simulation is recorded. Sliders, answers, quiz attempts, scores and time spent stay in the browser and are gone when the tab closes. We keep no learning records, progress histories or assessments.
• No tracking of any kind. No analytics tools, no advertising, no tracking pixels, no social-media plugins and no third-party cookies. We do not profile, fingerprint or follow anyone across sites.
• The free simulations need no account. A student or teacher can use them without telling us who they are.
• We never sell, rent or trade personal information, and never use it for advertising or to train AI models.
• Children’s information is not collected through the simulations. We do not knowingly ask a child for personal information.

Only if someone chooses to create an account (to open the members’ and Pro simulations, or to run a classroom):

• Account details: a name and a mobile number (used to sign in with a one-time SMS code, as there are no passwords), and, if given, an email address, institute, role (student, teacher, parent…) and country.
• Plan details: which plan is active and until when, classrooms a teacher creates, and which students joined them with a code.
• Payments: the amount, the plan bought and the payment reference. Card, UPI and bank details are handled entirely by our payment processor, Razorpay, and never reach us.
• Security records: sign-ins and one-time-code requests, with a one-way scrambled (hashed) form of the network address, used only to stop abuse. The code itself is stored only in scrambled form.

We also count how often each simulation is opened per day. These are totals, with no person, device or address attached.

Only the cookies needed to keep a signed-in person signed in, and nothing at all for visitors who never sign in. The search box remembers recent searches in the browser itself; that never leaves the device. No advertising or analytics cookies, so there is no cookie banner to accept.

Only the services needed to run the site, each bound to use the data for that purpose alone: our hosting provider (Vercel), our database (Supabase, stored in India, in Mumbai), our SMS provider (to deliver sign-in codes) and Razorpay (for payments). We share nothing with anyone else, except where Indian law requires it.

Anyone with an account, or the parent or guardian of a learner who has one, can ask us to show, correct, export or delete it at any time, and to withdraw consent. We act on requests within 30 days. Data is encrypted in transit (HTTPS) and at rest, access is limited to the team that runs the service, and an account’s details are deleted when its holder asks.

This policy is written to the principles of India’s Digital Personal Data Protection Act 2023, the EU and UK General Data Protection Regulation (GDPR), the US Children’s Online Privacy Protection Act (COPPA) and Family Educational Rights and Privacy Act (FERPA), and the Student Privacy Pledge: collect the minimum, use it only for the service, never for advertising, and give people control over their own information.

For any privacy question or request, call or WhatsApp the PhysicsSimulation team on +91 62625 75800 (Mon–Sat · 8:00 AM – 8:00 PM). If this policy changes, the new version will appear here with its date.