── Pricing
51,014 worked solutions. Not just answers.
Every question across 998 math, science, statistics, and CS concepts shows the recognition step, the why it works, and the trap most kids fall into — the part you can't clean-extract from a chatbot. Browse it all free. One plan unlocks the worked solutions.
Math tutors do things we don't — diagnosing learning disabilities, building human rapport, reading body language. If your child needs those, no software replaces them. For the explanation, pacing, and progress-tracking parts, we cover ~90% of what a tutor does at <5% of the price.
Free
$0
Browse everything, forever. The account is free too.
Without an account
- All 51,014 practice questions across 998 concepts
- The final answer and first solution step on every question
- One full worked solution per concept
- Concept pages, guides, and interactive maps
A free account also gives you
- Every attempt recorded, and what each child has mastered
- A plan for today, and a learning map with goals and a placement check-in
- Missed questions collected automatically, and returned by spaced review
- Bookmarks, daily streak, weekly league, XP, the pet, and collectibles
- Up to 5 child profiles and the parent dashboard
- 3 mastery checks per day, shared across the family
Family
$99/yr
$8.25/mo · cancel anytime
- Every worked solution — the full steps, the why, the trap
- Unlimited mastery checks — free is 3 a day, shared across the whole family
- A written explanation of what went wrong on each question your child misses — up to 8 per practice set
- One plan covers every child profile on your account — no per-child pricing
30-day money-back guarantee — if it's not helping, email us and we refund it, no argument (details). Cancel anytime. No contracts. Payments handled by Stripe; charges appear as SENSEOFSTUDY.
Prepping for AMC 8? The 8-week Sprint Kit is a focused, one-time season pack — separate from the Family plan.
Questions parents ask
What's actually free?
All 51,014 questions, every concept page and guide, and the interactive maps — no account needed. You can see the final answer and the first solution step on any question, plus one full worked solution per concept, without paying.
A free account (no card) adds everything that has to be remembered: recorded attempts and mastery, the daily plan, the learning map with goals and a placement check-in, the mistake bank and its spaced review, bookmarks, streak, weekly league, XP, the pet and collectibles, up to 5 child profiles, the parent dashboard, and 3 mastery checks a day. The full worked reasoning on the other 50,000-odd questions is what the Family plan unlocks.
What does Family unlock?
Every worked solution in full — the recognition step, the why-it-works, and the common trap — plus unlimited mastery checks (free accounts get 3 a day for the whole family) and a written explanation of what went wrong on each question your child misses, up to 8 per practice set. Child profiles and the parent dashboard come with the free account; Family is about the reasoning behind the answers.
How is this different from a chatbot?
A chatbot gives you an answer. We show the reasoning a strong student would actually use to recognize the problem type, written and checked by humans across all 51,014 questions — the part that's tedious and unreliable to extract from a chat tool one question at a time.
Can I cancel anytime?
Yes. Monthly and annual both cancel anytime, and you keep access through the end of the period you've already paid for.
For schools
Class dashboards, assignment tracking, and curriculum insights. Contact us for school pricing.