Pixra
Coming soon to the App Store & Google Play

Ace every College Board exam.

AI-native prep for the SAT and 38+ AP subjects — a tutor that teaches you the method, grades your free-response answers against the real rubric, and knows exactly which unit you’re stuck on.

What's inside

Four ways Ren, Lecturely's AI tutor, helps you actually understand the material.

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u-substitution help Just show me
why is u-sub failing for me?

Sarp, look at the sign on the second term. Try the setup again.

u-substitution
Ren is thinking…
Ask Ren anything…

Socratic tutor

Asks, doesn't just answer

Learns how you think and asks the right next question — guiding you to the answer instead of handing it over.

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FRQ result · AP Calc BC
2/3
PROMPT V1

The question

Integrate 2x·cos(x²) dx.

A1/1

Sets u = x², du = 2x dx. Substitution correct.

B0/1

Ren's note: antiderivative computed without the ½ factor.

Ren's read

You lost b1 to a factor-of-2 slip — otherwise clean work.

FRQ grader

Scored like a real reader

Rubric-level feedback on free-response answers, scored the way College Board readers score them.

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Your mock result

1480

95% CI 1450–1510 (±30)

Reading & Writing

730

Math

750

Your weak spots

Darker = weaker. Tap any topic to drill.

Build a 7-day plan around your gaps →

Adaptive mocks

Full-length, then a plan

Realistic, timed exams that adapt to your weak spots and track readiness — then build a study plan around the gaps.

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What Ren found
1 ISSUE
12x + 3 = 11
22x = 11 + 3
32x = 14
Line 2 · sign error

You added 3 to the right side but should have subtracted it.

Inverse operations on linear equations

Try this instead

2x = 11 − 3

Practice this concept

Math camera

Catches the exact line

Snap your handwritten work and Ren finds the precise line where the reasoning broke — with the fix.

What you get

A tutor that makes you think

Ask for the answer and it asks you a question back. Lecturely walks you to the result one step at a time, so you can reproduce it in the exam — not just nod along to it.

FRQ grading against real rubrics

Write a full free-response answer and get it scored point by point, the way a reader would. You see exactly which rubric point you missed, and why.

Mocks that adapt to you

Practice tests that ease off where you are strong and drill where you are not, so an hour of study goes on the things that will actually move your score.

Point your camera at the problem

Photograph a question from a textbook or a worksheet and get a worked, step-by-step solution — handwriting included.

SAT + 38+ AP subjects

Every subject follows the full College Board course outline, unit by unit.

SATCalculus ABCalculus BCPhysics 1BiologyChemistryUS HistoryWorld HistoryComputer Science APsychologyEnglish LangStatisticsMacroeconomics+ many more

Questions

When does it launch?
Very soon — we're in the final stretch on iOS and Android. Join the waitlist and you'll get one email the day it's live.
What will it cost?
There'll be a free tier you can genuinely study with, plus a paid subscription for unlimited tutoring, full mock exams and FRQ grading. Waitlist members hear the pricing first.
Which exams are covered?
The SAT and 38+ AP subjects at launch, each following the full College Board course outline — not just a question bank bolted onto a chatbot.
How is this different from just asking an AI chatbot?
Lecturely is built around each exam's actual curriculum and scoring guidelines: it knows which unit you're on, grades to the real rubric, and is designed to teach you the method rather than hand over the answer.

Be first in line

One email the day Lecturely goes live — and waitlist members hear the pricing before anyone else.