Pick the plan that fits your prep.
Free to start. Upgrade for AI marking, smart quizzes, the doubt solver, and the full virtual lab.
- ✓ All Cambridge IGCSE subjects
- ✓ Topical questions + mark schemes
- ✓ Personal progress tracking
- ✓ Bookmarks & self-mark log
- × No AI features
- × No quizzes or doubt solver
- ✓ Virtual lab — 30 min preview / week
- ✓ Everything in Free
- ✓ AI automatic marking
- ✓ Unlimited AI flashcard decks
- ✓ Diagnostic test
- ✓ Custom papers (limited)
- ✓ Doubt solver + quizzes
- ✓ AI Study Assistant
- ✓ 15 AI prompts / day
- ✓ Virtual lab — 60 min preview / week
- ✓ Everything in Plus
- ✓ Virtual lab (ATP simulations)
- ✓ Unlimited AI marking
- ✓ Unlimited custom papers
- ✓ Personalised study plan
- ✓ 25 AI prompts / day
- ✓ Priority support
Compare everything
| Feature | Free | Plus | Pro |
|---|---|---|---|
| Subjects browser | ✓ | ✓ | ✓ |
| Topical questions + mark schemes | ✓ | ✓ | ✓ |
| Progress tracking + bookmarks | ✓ | ✓ | ✓ |
| Topical practice | — | ✓ | ✓ |
| "Check answers with AI" | — | ✓ | ✓ |
| Active-recall quizzes | — | ✓ | ✓ |
| AI-generated flashcard decks | — | Unlimited | Unlimited |
| Spaced-repetition review | — | ✓ | ✓ |
| Doubt solver (text + image) | — | ✓ | ✓ |
| AI Study Assistant | — | ✓ | ✓ |
| Diagnostic test | — | ✓ | ✓ |
| Custom papers | — | Limited | Unlimited |
| Virtual lab | 30 min/wk | 60 min/wk | ✓ Unlimited |
| Personalised study plan | — | — | ✓ |
| Daily AI prompts | 0 | 15 | 25 |
Questions
What counts as one AI prompt?
Any time you ask the AI to mark an answer, explain a question, generate a quiz, or chat with the Study Assistant. MCQ marking is local and doesn't count.
Do prompts roll over to the next day?
No — your quota resets at 00:00 UTC each day. This keeps costs predictable for everyone.
Can I cancel anytime? Do you offer refunds?
Yes, you can cancel anytime from Settings — your subscription stops renewing and you keep access until the end of the current paid period. Payments are non-refundable (we don't refund partial or unused time), except where required by law.
Is there a student discount?
Yes — a launch discount is on right now: 10% off Plus and 20% off Pro, already applied to the prices above. TopMark is student-made and priced to be affordable; invite friends with your referral code (in Settings) for more perks.
What payment methods do you support?
Card payments via Stripe are coming soon — you'll be notified at the email on your account when paid plans launch.