Practise as much as you need to
Most exams cost one credit. Exams over 40 questions cost two, and one more is added for the hardest difficulty, an open-answer-heavy paper, or a very large amount of source material. The exact price is always shown before you generate, and retakes are free.
Prices exclude sales tax. Any tax for your state or country is worked out from your billing address at checkout; buying for a business, you can enter a tax ID there.
Free
Try a full practice exam before you decide.
Free
- 3 welcome exam credits in total — golden, so they never expire
- Up to 10 questions per exam
- Multiple-choice exams only — open questions are on Student and Pro
- Linked documents up to 5 MB / 25 pages
- Exam history saved to your account
Student
For exam season. Practise a whole course, repeatedly.
US$7.99/ month
Renews monthly · up to 5 carried over
- 15 plan credits every billing month
- Up to 25 questions per exam
- Open questions graded against a rubric
- Linked documents up to 25 MB / 200 pages
- Complete exam history and projects
- Practise your incorrect answers
- Source references on every question
Pro
Full-length mocks, large readers, deeper analysis.
US$12.99/ month
Renews monthly · up to 15 carried over
- 40 plan credits every billing month
- Up to 50 questions per exam
- The Stello 1 Pro exam engine
- Linked documents up to 100 MB / 800 pages
- Priority generation queue
- Every advanced exam setting
- Per-topic mastery analysis
- Everything in Student
Or just top up
Buy extra credits without changing your plan. They are yours until you spend them.
Top-ups are golden credits. Buy them once and they never expire.
US$3.49
US$0.70 per credit
US$8.99Save 14%
US$0.60 per credit
US$19.99Save 28%
US$0.50 per credit
Before you pay anything
- 1
Try it as a guest
One free practice exam of up to 10 questions. No account, no card.
- 2
Create an account
Up to 3 welcome exam credits in total; a guest exam counts toward them. Your results are saved so you can track progress.
- 3
Invite a friend
2 more credit once they verify their account and finish their first exam.
Demo mode. Stripe isn't configured, so "buying" applies the plan or credits immediately without taking payment.