Practise sharper, score higher
AI marks your paper by the DSE step marks — see exactly where you're weak and how to fix it. Snap & submit, instant marking, mistake-book review and mock-exam diagnostics, all in one place.
Not just more practice — sharper practice
Built on the real DSE marking scheme, teaching you to win marks step by step — that's our biggest difference.
Snap & submit, and AI awards marks step by step against the real DSE marking scheme — see exactly where each mark is won or lost, not just right or wrong.
Wrong answers are saved automatically and resurfaced right when you're about to forget them, so you drill until you stop slipping up.
Sit it like the real thing under time pressure — on submit you get syllabus-point strengths and weaknesses, a predicted grade and a one-tap jump to your weak areas.
See your strength on every syllabus point at a glance — practice automatically prioritises your weakest points for maximum efficiency.
AI generates original questions with a single correct answer, controllable difficulty and no copyright risk, across all DSE subjects — practise as much as you like.
SymPy deterministic checking plus LLM step-by-step grading means maths answers are scored on evidence, with human review available on the questions that matter.
Three steps to turn weak areas into strengths
Work it out on paper, snap a photo and upload — handwriting is recognised too.
Marks awarded step by step against the DSE marking scheme, pinpointing exactly where you lost marks, with AI explanations on hand.
Mistakes flow into your mistake book and review queue, mastery updates, mock exams prove your progress and your scores climb steadily.
Others give you questions — we help you win the marks
Three things no one else nails — from understanding every mark, to precisely fixing weak areas, to seeing how close you are to your goal.
Missed the constant-term sign when completing the square — this step lost 1 mark. The correct form is (x−2)²+(y+1)²=9.
Not just right or wrong — understand how every mark is earned
AI grades step by step against the real DSE marking scheme, breaking M marks and A marks down to each step — see at a glance which step earned marks and which lost them, with AI explanations to make the cause clear.
- Step-by-step marks: each step is scored on its own, not a single right-or-wrong verdict for the whole question
- Pinpoint lost marks: down to losing 1 mark on 「completing the square」
- Ask anytime: every wrong answer comes with an AI explanation, like a tutor beside you
Pinpoint your weakness down to a single finest syllabus point
We map every question to the DSE syllabus down to the finest 「strand → unit → objective」 point, scoring mastery on the smallest leaf — not a vague 「weak at algebra」 but the single point of 「the discriminant and roots」. Weak points go straight into your mistake book, and SM-2 spaced repetition calls you back on the day to review, with variant questions on the same point.
- Mapped to the syllabus: every question is bound to a finest DSE syllabus point, with mastery scored down to the leaf
- SM-2 spaced repetition: the same forgetting-curve algorithm as Anki, scheduling reviews right at the 「about to forget」 tipping point
- Focused variant practice: not the same question again, but grouped variants on the same point — you learn 「the syllabus point」, not 「one memorised question」
How many marks are you from a 5** right now
Sit it like the real thing under time pressure — on submit you get syllabus-point strengths and weaknesses, a predicted grade and timing analysis, plus one-tap targeted practice on your weak areas. Every mock shows you moving up.
- Real exam experience: timed, Paper 1 and Paper 2, following the real DSE flow
- Predicted grade: a 1–5** prediction based on your step-mark performance
- One-tap targeting: weak syllabus points turn straight into targeted practice
One platform, every DSE subject
Math is fully live and more subjects are rolling out — one learning loop that works for every subject.
Clear, transparent pricing
Pick the plan that fits you — upgrade or cancel anytime.
Unlimited MC & solutions + 5 markings and 10 AI explanations per month (to get started).
- 35 credits / month
- ≈ 5 markings
- ≈ 10 AI explanations
Unlimited practice + 150 AI explanations/mo + 60 markings/mo + 1 mock paper.
- 530 credits / month
- ≈ 60 markings
- ≈ 150 AI explanations
- ≈ 1 full-paper markings
Priority compute + full mock library + long-term progress tracking + 150 markings/mo.
- 1,170 credits / month
- ≈ 150 markings
- ≈ 300 AI explanations
- ≈ 6 full-paper markings