Lumos

A simple and interactive way to learn Physics.

Download on the App Store

Available on iPhone, iPad and Mac

Three experiments.
Infinite curiosity.

Every simulation is designed to match your NCERT textbook — so what you see in Lumos is exactly what shows up on your exam.

O1

Reflection

Drag a light ray and watch it bounce off mirrors in real-time. Understand the law of reflection by feeling it, not memorising it.

O2

Refraction

Change the medium from air to glass to water and see Snell's Law come alive. Move the incident ray — the refracted ray follows instantly.

O3

Diffraction

Adjust a barrier's gap and watch waves spread and interfere. The kind of visual that textbook diagrams have never been able to show clearly.

3
Interactive experiments
0
Data collected, ever
Free
Always and forever

Your privacy is
non-negotiable.

Privacy Policy

Last updated: April 21, 2026

No data collection

Lumos does not collect, store, or transmit any personal information. No account is required. The app works entirely on your device.

Children's privacy (COPPA)

Lumos is designed for students aged 11–15. Because we collect zero data of any kind, the app is fully compliant with COPPA and safe for use in schools and classrooms worldwide.

No third-party services

We use no analytics SDKs, no advertising frameworks, and no crash-reporting tools that could transmit data off your device. Lumos is completely self-contained.

No internet required

Every simulation runs offline. Lumos never makes a network request after the initial download.

Terms of Use

Last updated: April 21, 2026

Lumos is provided for personal educational use. You may use the app freely for learning and classroom purposes. The app may not be redistributed, reverse-engineered, or modified without written permission from the developer.

Got a question?

For student queries, classroom feedback, or anything else — I'd love to hear from you.

kavyakushagrasingh@gmail.com