LCKD.IN

Revision that feels like a feed. Bite-sized posts for GCSE & A-level — free, no logins, no data collection.

LCKD.IN makes revision feel like scrolling your favourite app. Instead of endless notes, you get bite-sized posts written like tweets — short, clear, sometimes funny, and always exam-relevant.

Start with GCSE Physics and GCSE Maths, with all subjects and A-level content coming soon.

Features: Covers OCR GCSE Physics (Chapters 1–8) and key GCSE Maths topics

A-Level Physics, Maths and more subjects are being added continuously

Equations displayed properly using LaTeX

Bookmark your favourites for quick review

Compose your own notes to appear in your feed

No logins, no ads, no data collection — just revision