Pricing
Start free with 30 credits, then pick a plan or a top-up pack when you need more. You pay on a secure Stripe page (sales tax or VAT is added there where it applies), and plans can be cancelled any time from your account page.
What $15 a month gets you
Here's how the monthly plan works out.
$15
a month
180
credits
12
Quick practice lessons
That's up to 12 Quick practice lessons or 4 Full study guides. About $1.25 per Quick practice lesson, or $3.75 per Full study guide. Lessons from more pages use more credits (see below).
- Credits come back automatically if your notes aren't math, we can't read them, or something breaks on our side.
- Every lesson stays in your library, so you can study it again before the test.
- Cancel any time. No contract, nothing to remember to undo.
- Top-up credits never expire.
What a lesson costs
Quick practice: from 15 credits
A short refresher on the main ideas, then lots of practice problems. Great the night before a quiz.
Full study guide: from 45 credits
Every idea in your notes, explained with worked examples, visuals, practice, a concept check and a cheat sheet. Great for unit tests and finals.
You pay for what you upload
- Includes 1 PDF page or photo and 2,000 typed characters.
- Each extra PDF page or photo: +2 credits for Quick practice, +4 for a Full study guide.
- Each extra 2,000 typed characters (or part of them): +2 credits for Quick practice, +4 for a Full study guide.
| Pages or photos | Quick practice | Full study guide |
|---|---|---|
| 1 page | 15 credits | 45 credits |
| 5 pages | 23 credits | 61 credits |
| 10 pages | 33 credits | 81 credits |
| 20 pages | 53 credits | 121 credits |
The upload form shows the exact price before you make the lesson, and that's what you pay. Nothing is ever added afterwards.
Plans
Weekly plan
Available now$5/week
50 credits every week
About $1.67 per Quick practice lesson
- Up to 3 Quick practice lessons or 1 Full study guide
- Credits reset at the start of each week
- Good for a test week. Cancel any time
Monthly plan
Available now$15/month
180 credits every month
About $1.25 per Quick practice lesson
- Up to 12 Quick practice lessons or 4 Full study guides
- Credits reset at the start of each month
- Cancel any time
Yearly plan
Available now$150/year
180 credits every month
Works out to $12.50 a month (17% less than monthly)
- Up to 12 Quick practice lessons or 4 Full study guides each month
- Credits reset at the start of each month
- Paid once a year. Cancel the renewal any time
Free to start
Available now$0
30 credits when you sign up
- Enough for up to 2 Quick practice lessons
- Every lesson saved in your library
- No card needed
Top-up packs
Available now$5and up
Extra credits when you need them
- 45 credits for $5 (11¢ per credit)
- 150 credits for $15 (10¢ per credit)
- Top-up credits never expire
- Used after your plan's credits run out
Prices are in US dollars. Plans renew until you cancel them; top-up credits never expire.
AP Calculus courses: AB $39, BC $49 (includes AB)
Ready-made courses for the AP exams, separate from credits: every unit, a review and a timed test for each, and a full practice exam, for one payment each. The BC course includes the whole AB course. Unit 1 of each is free with an account. Buy one on its course page.
See the coursesBuilt by a math tutor
I'm a math major and a math tutor. Almost every week, a student brings me a page of notes they copied down in class, and they can't study from it. The steps that made sense on the board don't make sense at home.
I wanted the price to be an easy yes for a student, and for the parent paying: a month of lessons made from your own notes should cost less than a single hour with a tutor.
Thomas, founder of Lemma
Questions about credits? Read the FAQ
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