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NewFree lessons for the first units of AP courses

A study plan for every AP and SAT exam you take this year

Add your class’s test dates. preptrak builds a day-by-day plan to each one, teaches every topic, and gives you practice questions at real exam difficulty.

Take the free diagnosticStart a free lesson

Free diagnostic, no card. $14.49 a month per AP course; SAT prep $24.49 a month.

Read the film as text

  1. [A white screen. Under the words, a countdown of days ticks down on the beat. Exam figures from different subjects pop in: a graph, a physics diagram, a box plot, a history source, a reading passage, a circuit.]

    Test day.

    So much to cover.

    Zero plan.

  2. [The music stops. On the drop, the screen goes black and the preptrak logo hits.]

    A study plan to your test date.

  3. [Quick cuts through the real app, across different courses: a study plan, then a lesson.]

    Day by day.

    Every topic, taught.

    Start free

  4. [A practice question is answered, checked and wrong; the explanation scrolls in.]

    Real exam practice.

    Not quite. The answer is B.

    Wrong? Here's why.

  5. [Diagnostic results by unit, the parts of a study session, then the dashboard's next step.]

    Free diagnostic.

    Warm-up.

    Timed set.

    Review.

    Do this next

  6. [A full-length practice test: the test screen, its timer, and an estimated score range.]

    Full-length tests.

    Real format.

    Real clock.

    Know your score.

  7. [Every open course flies by, then the dashboard's row of courses. A two-second recap: the plan, a checked answer, the diagnostic's unit bars, the dashboard, a score.]

    All your tests.

    One plan.

    Plan.

    Check.

    Gaps.

    Next.

    Score.

  8. [The end card. The address types in.]

    Your test. Your date. Your plan.

    Start free

    preptrak.org

The SAT and every AP course with an exam

preptrak is a study plan for the whole school year. Lessons that teach every topic, practice at real exam level, and a calendar that works back from every test you have, from the first unit test in September to the AP exams in May.

AP courses, plus the SAT
36
practice questions open now
20,659
a month per AP course
$14.49
diagnostic, no card needed
Free

How preptrak works

  • Lessons

    Every topic, taught properly

    One lesson for each topic in the course framework: why the idea works, worked exam-level examples, and the mistakes that cost points. The first units of each course with lessons are free.

    Explore lessons
    FreeAP Calculus BC · Topic 1.1

    Introducing Calculus: Can Change Occur at an Instant?

    Explain why an average rate of change can't be computed at a single instant, and find the instantaneous rate as the limit of average rates over shrinking intervals.

  • Practice

    Questions at real exam difficulty

    Original questions written to the format and difficulty of each AP exam, with every answer explained, including why the wrong ones are wrong.

    See the questions
    AP Calculus BCUnit 10 · Infinite series · Hard

    The series ∑n=1∞an\sum\limits_{n=1}^{\infty} a_n converges conditionally. Which of the following must be true?

    1. A. ∑n=1∞an2\sum\limits_{n=1}^{\infty} a_n^2 converges.
    2. B. ∑n=1∞(−1)nan\sum\limits_{n=1}^{\infty} (-1)^n a_n converges.Your answer
    3. C. ∑n=1∞(an+∣an∣)\sum\limits_{n=1}^{\infty} \left(a_n + \left|a_n\right|\right) diverges.Correct
    4. D. ∑n=1∞ann\sum\limits_{n=1}^{\infty} \dfrac{a_n}{n} diverges.

    Conditional convergence means ∑an\sum a_n converges but ∑∣an∣\sum |a_n| diverges. If ∑(an+∣an∣)\sum\left(a_n + |a_n|\right) converged, subtracting the convergent ∑an\sum a_n would make ∑∣an∣\sum |a_n| converge, a contradiction; so C must be true.

    Why not B: For an=(−1)nna_n = \dfrac{(-1)^n}{n}, (−1)nan=1n(-1)^n a_n = \dfrac{1}{n} and the harmonic series diverges.

  • Study plan

    A plan that moves when you do

    The plan works back from each unit test your teacher sets. Struggle on a drill and tomorrow gives that topic more time; miss a day and the work shifts instead of piling up.

    Try a sample plan
    After Tuesday’s drill

    2 of 6 on equilibrium constants

    Wednesday

    • + 8 equilibrium constant questions
    • 5 from Kinetics

    Thursday

    • Le Chatelier’s principle, moved from Wed

  • SAT

    Full-length tests that adapt like the real one

    Adaptive practice tests with very hard original questions, an estimated score range after each one, and a plan to your test date.

    See SAT prep
    Math · Module 217:42

    SAT

    Adaptive full-length practice tests, scored as a range.

    Example

Built for students, for every test of the year

Pick a course and start with its free diagnostic. It shows which topics you already know, so your time goes to the ones you don’t. More AP courses are on the way.

Free, no card

The diagnosticKnow where you stand

Take the diagnostic

$14.49 a month per course

The planOnly the courses you need

See pricing

Try a sample plan

Change the course, the unit, or the days you have, and watch the plan rebuild itself around your test date.

Test is in
Time each day

Your plan for the Unit 3 test

30 min a day
  1. Today
    • Diagnostic:15 questions across the whole unit
  2. Day 2
    • Drill:Your weakest topic
  3. Day 3
    • Drill:Your 2nd-weakest topic
  4. Day 4
    • Drill:Your 3rd-weakest topic
    • Review:5 questions from Chemistry of Life
  5. Day 5
    • Drill:Second pass on your weakest topic
  6. Day 6
    • Drill:Mixed set of every topic you missed this week
  7. Day 7
    • Test:Timed practice test on the full unit
DiagnosticDrillReviewTest

After the test, your plan moves on to Cell Communication and Cell Cycle and keeps this unit in short reviews until May.

Pricing

$14.49 a month per AP course. Only the courses you need.

Taking four APs but only worried about Chemistry? Pay for Chemistry. Add a course when a class gets hard and drop it when it doesn't.

  • The diagnostic is free, and needs no card.
  • Cancel online any time.

SAT prep is priced on its own: $24.49 a month or $224.99 a year. See SAT prep

Courses you want help with

1

$14.49a month

Start free

What it costs to start prep for one AP course

ServicePriceTerms
preptrak$14.49per course, per month
Fiveable$29per month, monthly plan
Albert$79per subject, paid up front for 6 or 12 months
UWorld AP course$99per subject, 30 days of access
Princeton Review cram course$399per subject

Prices listed on each company's website in October 2026: Fiveable, Albert, UWorld AP course, Princeton Review cram course.

Start with a free lesson

All lessons

Common questions

Are these real College Board questions?

No. preptrak writes its own questions and matches each one to College Board's published frameworks: the units, topics, and skills of each AP course, and the domains and skills of the digital SAT. preptrak isn't affiliated with College Board.

My teacher doesn't teach the units in order. Does that matter?

No. The plan follows the test dates you enter, in whatever order your class covers the units.

Does it help with the AP exam in May too?

Yes. Earlier units come back in short reviews all year, and in the weeks before the exam the plan moves to mixed review across the whole course.

Can I pay for just one course?

Yes. Each AP course is $14.49 a month on its own, and SAT prep is $24.49 a month or $224.99 a year. Add or drop courses whenever your schedule changes.

Who can use preptrak?

High school students taking AP courses or preparing for the SAT. You need to be 13 or older to sign up.

Which courses are covered?

The SAT, and every AP course that has an exam, 36 in all. See the full list.

Is it preptrak or preptrack?

preptrak, with no c. If you type preptrack or prep trak into a search, you'll still find us at preptrak.org.

When’s your next test?

Start free with the diagnostic and have a plan ready before it.

Take the free diagnosticSee all courses