What's new
3 Jun 2026
- New 26–27 Summer Course Schedule page — all S.3 Science and S.4 Physics summer classes with timeslots, locations, and a week-at-a-glance view. View the schedule →
- New guide: does our F.4 Force & Motion course fit IGCSE / IAL / IB / AP students? A topic-by-topic comparison against the international physics syllabi. Read it →
28 May 2026
- The Daily Challenge is now for signed-in players — log in or sign up (it's free) to play today's set and appear on the daily leaderboard.
27 May 2026
- Posts from A. Lam now appear right on the home page — pinned announcements sit up top so you won't miss them.
- Instagram and YouTube links in posts now show the photo/video inline, instead of just a link.
23 May 2026
- You can now change your display name and school from your profile.
- Members zone: video playlists play inline now, with a link to the full playlist.
- Infinite mode: very long streaks save reliably, and you can publish a new best without restarting.
- Achievements unlock the moment you clear a run.
21 May 2026
- Survival results now show your clear time and a mini leaderboard of that exact category.
- Fastest Survival board: filter by the exact pool & difficulty — no more mixed times.
- Hard & Hell survival now serve genuinely harder questions.