Develop the foundational skill of every problem solver

Yes. Every problem, every worked solution, and the full archive are free — nothing here sits behind a paywall. There's no account required to solve today's problems or browse past ones. There's also a paid Premium tier for people who want more, but free daily practice isn't going away.

€12 a month, billed monthly — there's no yearly plan. Cancel anytime from your account settings; no long-term commitment.

Problems span grade 9 through grade 12 math, plus a handful of graduate-level problems for people who want a real challenge. Each day mixes difficulty — easy, medium, and hard — so there's something calibrated to wherever you're starting from. Pick your exam's curriculum and the difficulty follows that syllabus.

Ten exam tracks so far: the SAT, UK A-Level and GCSE, IB Analysis & Approaches, AP Calculus BC, US Honors, the French bac (Spé, Seconde, and Expertes), and Romania's BAC M1. See the full breakdown, with sample problems for each, on the curriculum page. More exams get added as we author enough problems to cover them properly.

The set published here each day is ten problems, worked at your own pace with no timer pushing you through it — come back the next morning for a fresh one. Inside the app it's different: you get a personalized trio, Warm-up, Target and Stretch, picked to sit right at your level.

The website publishes a ten-problem set every day plus the full archive, free forever. The app adds a daily trio tuned to your exact exam and level, plus streaks, ranks and unlimited topic practice beyond the daily set. It's open now — a free account is all it takes.

Yes, and it's live. You pick the scope you want to be ranked in — your school, city, country, continent, or the whole world — and you climb it by solving, not by keeping a streak alive. On the 1st of each month you're shown where you finished the month before.

Yes — every problem we've ever published lives in the archive, sorted by date with full worked solutions. Nothing gets taken down or hidden behind a login; browse back as far as you like. Same problems, same solutions, no expiration.

No. You can solve today's problems, read every solution, and browse the archive without signing up for anything. The only reason to give us your email is to get tomorrow's problems delivered each morning — and that's optional.

Most are drawn from real exam curricula — SAT, A-Level, IB, AP, and the French bac — adapted and re-worked so they train the same skills the actual exam tests. The rest are original problems we write in-house to fill gaps those curricula don't cover well. Every problem gets a full worked solution, not just an answer key.