Simple, Honest Pricing
Pay once, own it forever. Individual formula sheets or full courses — no subscriptions, no recurring charges.
Sheets
Individual Formula Sheets
$9.99
/ sheet
One-time purchase. Yours forever.
Browse Sheets
- Instant PDF download
- A4 + US Letter sizes
- Print-ready, watermark-free
- 116+ subjects available
- No interactive lessons
- No certificate
Courses
Full Interactive Courses
$39–$49
/ course
One-time. Lifetime access. Calc I free →
Browse Courses
- Interactive lessons & examples
- Practice problems per lesson
- Progress tracking
- Completion certificate
- Formula sheet included
- One subject only
What's included in each plan?
A full breakdown so you can pick the right one for your semester.
| Feature | Sheets | Courses |
|---|---|---|
| Formula sheet (PDF) | ✓ | ✓ (1 subject) |
| Access to 116+ sheets | ✓ | — |
| Instant PDF download | ✓ | ✓ |
| Print-ready (A4 + Letter) | ✓ | ✓ |
| Interactive course lessons | — | ✓ |
| Practice problems | — | ✓ |
| Completion certificate | — | ✓ |
Questions
Do the sheets ever expire?
Never. Individual sheet and course purchases are yours forever — no subscription needed to keep access.
Are there any recurring charges?
All purchases are one-time. You own what you buy — no recurring charges, ever.
Is Calculus I really free?
Yes — the full Calculus I Mastery course (28 lessons, derivatives, limits, applications) is completely free. No credit card required.
What if a sheet doesn't match my course?
Our sheets are built around the most common textbooks and university syllabi. If something major is missing, contact us and we'll do our best to fix it. We recommend downloading our free sample first to check the format and coverage.
Do you offer student discounts?
Yes — follow us on Reddit or Discord and we regularly post discount codes. Semester-start and finals promotions are the best times to buy.