Plans and pricing

Every lesson, interactive and checkpoint, practice from the lesson questions, Cram mode, the formula sheet, the study map and the self-assessment. You can use them without an account. A free account adds your progress on every device, every cheat sheet to read online, and 30 questions a day from the full question bank. Plans never lock a lesson.

Room, time and paper. Your Review later list keeps everything you save instead of 10, you can ask Sensei 30 questions a day instead of 5, practice from the full question bank has no daily limit, and you can download and print every cheat sheet as a PDF. It costs USD 19 a month.

Practice carries on from the lesson questions, in your browser, as many as you like. Your 30 questions from the full question bank come back at midnight UTC.

Only if you start a plan. Plus is USD 19 a month and Sensei is USD 149 a month during early access, paid on Polar's secure checkout page. Your plan renews every month until you cancel.

Polar, our online reseller, takes the payment. You pay on Polar's secure checkout page and come straight back here, and we never see your card number. Polar adds any VAT or sales tax that applies and emails your receipt.

You switch straight away and keep your monthly date. We charge your card once, at the time you switch, for the difference between the Sensei and Plus prices for the rest of that month. Nothing is refunded: the Plus days you already paid for count toward that charge. After that you pay the Sensei price each month.

Prices are in US dollars. Any VAT or sales tax that applies is worked out by Polar from your billing address and shown at checkout, before you pay.

Yes, any time, from your account page. Your plan stays on until the end of the month you are in, then your account moves to the free plan. Nothing is deleted: your review list keeps everything on it, and you can add new items once it holds fewer than 10.

Yes, for your first payment: ask within 14 days of it and we refund it in full, no questions asked. Monthly renewals are not refunded, except for a billing error. To ask, use the contact page.

A voice tutor that teaches any module aloud, in the same exam-first order as the lessons. Interrupt at any point with a question and it answers with the lesson's own example, then carries on where it stopped. It quizzes you by voice at the end of each lesson and remembers what you missed. It includes everything in Plus and costs USD 149 a month during early access. Every account can try Sensei on one module, with one voice question.

Sensei is in early access. While it is, you pay the founding price of USD 149 a month instead of the regular USD 199 a month, and you keep that price for as long as you stay subscribed. If you cancel and come back later, you join at the price of the day.

It teaches, listens and quizzes today, and it is in active development: the voice, the answers and the flow improve every day. If something sounds wrong or you want it to do more, tell us. Use the Send feedback link on the Sensei page or in the Sensei bar on any lesson, and we read every message.

With Plus or Sensei, yes. Make available offline on your account page keeps every lesson, checkpoint, the formula sheet and the cheat sheets on your device, and what you do offline syncs when you're back online. Ask Sensei, the self-assessment and practice from the full question bank need a connection.

Not yet. Plans are monthly, and the free account is a good way to try everything first.