Pricing
Rigorous Reasoning replaces your $150 logic textbook and $80 courseware subscription with a single platform built for real proof construction, interactive practice, and instructor-grade feedback. Start free, upgrade when you're ready, and bring a whole class with you when you are.
Free
Try the platform before you commit. No card required.
$0
Student Pro
All 15 units, unlimited detailed feedback, spaced repetition, and adaptive recommendations.
$119/year
or $14/month billed monthly
Annual billing saves you 29% vs. month-to-month. 14-day refund on annual.
Start Student ProTeam Small
Everything in Student Pro plus instructor tools for up to 10 students. Designed for homeschool, tutors, and small reading groups.
$349/year
or $39/month billed monthly
Best for homeschool families, tutors, and reading circles. Need more seats? See Team Classroom.
Start Team SmallTeam Classroom
Built for adjuncts, after-school programs, and small private schools running real courses with up to 50 students.
$899/year
or $99/month billed monthly
Need more than 50 students or institutional contracts? Talk to us about Institution.
Start Team ClassroomInstitution
Volume pricing, FERPA DPA, SSO/SIS integration, and dedicated onboarding for colleges, K-12 districts, and universities.
Custom/seat
Typical annual commitments: $2,500 (small college) to $30,000+ (R1).
Talk to salesWhat it replaces
A standard university intro-to-logic course usually means buying three things. Student Pro rolls them into one price that's lower than any of them individually.
Traditional textbook
$80 – $200
Hurley, Copi, or similar. One semester, one copy, then it's outdated.
Courseware access code
$75 – $120
MyLab, WebAssign, or similar. Expires at the end of the term.
Proof checker software
$40 – $150
Language, Proof and Logic, Logic Daemon, or standalone tools.
Rigorous Reasoning Student Pro
$119 / year
All three, integrated, plus detailed feedback and progress tracking. Twelve months, not one semester.
Scholarships
If you qualify for Pell Grant, institutional financial aid, or equivalent support outside the US, write to hardship@rigorousreasoning.com and we'll get you a full year of Student Pro for $0. No forms, no credit check, no catch. Rigorous thinking should not be locked behind a paywall for students who need it most.
Questions
You're charged once for the year. Your subscription renews automatically on the anniversary unless you cancel through the Stripe billing portal from your account. Annual billing is about 30% cheaper than month-to-month on Student Pro, and about 25% cheaper on the Team plans.
Yes. Open the Stripe billing portal from your account and change your interval. Credit for unused time on your current plan is applied to the new one automatically.
Free includes the entire Foundations unit plus the first lesson of every other unit, 15 detailed-feedback responses a month, and every Reasoning Lab tool. No card, no trial clock. Student Pro unlocks the remaining lessons and removes the feedback limit.
Student Pro includes every unit needed for a standard intro-to-logic course (arguments, fallacies, categorical logic, propositional logic, predicate logic, natural deduction) plus units most intro courses skip (abductive, Bayesian, modal, decision theory, problem solving). The proof editor actually checks your work — it's not a multiple-choice toy.
No. If your instructor has a Team or Institution plan, joining their course with the class join code gives you full Student Pro-level access for as long as you are enrolled. Every Team plan works the same way: your students never pay.
Team Small and Team Classroom are for individual educators — adjuncts, tutors, homeschool leaders, AP instructors — who pay for their own tools and teach up to 10 or 50 students, none of whom pay anything. Institution pricing is for departments, schools, and districts that want volume discounts, SSO, SIS integration, and a signed FERPA Data Processing Agreement. If you're the only logic teacher paying, pick a Team plan. If procurement is involved, contact us.
Annual plans can be refunded within 14 days of purchase, no questions asked. After that we prorate the unused portion on a case-by-case basis. Monthly plans can be canceled at any time and you keep access until the end of the current period.
No. Student Pro annual is a full 12 months starting the day you buy it. If you buy in September, you're covered through the following September regardless of how your institution structures its terms.
Institutional pricing starts at $5 per enrolled student per year with volume discounts and a floor for very small departments. Typical annual commitments run $2,500 for small liberal-arts colleges up to $30,000+ for R1 universities with multiple logic sections per term. Every institutional deal includes a signed FERPA DPA, a current sub-processor list, and dedicated instructor onboarding. Talk to us.
Terms of Service, Privacy Policy, and our FERPA Statement are public and up to date.