Photomath Plus, Quizlet Plus and Duolingo Super come to about $26 a month between them. This is all three, in one place. Start free; upgrade any time.
Free
$0
Enough to get unstuck on one problem
Your first solve needs no accountTry it on your own homework before you give us an email.
5 solves a day
1 quiz a day
Lecture notesTurning a recording of class into recall cards and an outline is a Plus and Pro feature.
15 minutes a day with the language tutor
15 follow-up questions a dayTap “I don’t get this step” on any solve.
Full step-by-step solutions
Charts and spreadsheetsLab data comes back as a real graph and an .xlsx you can open in Excel. Each chart uses one solve.
Review queue built from your own mistakesEvery solve, quiz and lecture feeds one schedule, and it brings each thing back right before you forget it. You never build the list.
You have a single course that keeps ambushing you, and the daily cap is the only thing in your way.
20 full-quality solves a dayEnough for any single course's problem set. Past 20 we keep going on our faster model rather than cutting you off — you are never stopped mid-problem-set.
5 quizzes a dayTurn your notes into practice tests before a midterm.
1 hour a day with the tutorFour times the free tier — a full practice session every day, not a teaser. In 11 languages.
2 lectures a dayTwo classes a day turned into notes and recall cards — transcribed on your own device, never uploaded. Free doesn't include lecture notes at all.
200 follow-up questions a dayAsk about any step, as often as you need.
ProBest value
$19.99/mo
A full STEM load, where a wrong answer costs you
Organic chem, calc, and a lab report in the same week. Pro is built for the student whose grade depends on the answer actually being right — not just fast.
2 hours a day with the tutorEight times the free tier and long past what a study session needs — practice until you're done, every day.
40 full-quality solves a dayMore than a full STEM load needs, even in finals week. Past 40 we keep solving on our faster model rather than stopping you, and tell you when that happens.
Unlimited quizzesNo daily cap. Generate a practice set for every topic on the exam.
Deeper reasoning on your first 40 solves each dayYour 40 full-quality solves run at our highest reasoning setting — the model spends longer working the problem before it answers. It matters most on long multi-step questions, where the difference is whether step four was right.
4 lectures a dayA full day of classes turned into notes, every day.
500 follow-up questions a dayInterrogate every step of every solve.
Why the tutor is timed
Solving a problem is one request. Talking to Sofia is a live conversation — she reads what you write, replies, and speaks out loud continuously — so it's priced by the minute, the way a tutor actually is. A human tutor runs about $30 an hour; Pro is 2 hours a day for $19.99 a month.
The clock only runs while you're practicing. It pauses while Sofia is thinking, while audio is loading, if a message fails to send, and any time you switch away — and it never charges you more than 30 seconds to type a single reply, so taking your time to get a sentence right costs nothing extra. Your minutes reset at midnight.
Cancel any time
Manage or cancel your plan any time from this page — cancellation takes effect at the end of the period you've already paid for, and you keep access until then. Payments are handled by Stripe; we never see your card number.