The only SAT Math prep that checks YOUR solution — line by line
Solve problems your way. The Trainer verifies every step, catches the exact line where your reasoning broke, names the mistake, and coaches you to fix it — without giving the answer away.
The Trainer
Every other tool grades your answer. We grade your thinking.
- 1
Solve line by line — your way.
Any valid path works; you're not forced into a reference solution.
- 2
Every step checked instantly.
Green check = the line follows. Red cross = the chain broke right here.
- 3
The mistake gets a name.
Sign error, distribution slip, dropped solution — you learn your patterns, not just this problem.
- 4
Hints that coach, not spoil.
A nudge first, the concept if you ask, the fix only when you're stuck.
Sign error
Moving −2 across the equals sign flips it: 7 + 2, not 7 − 2. Try that line again.
Type it like you write it — real math input with fractions, exponents and roots, on any device.
Full-length practice
10 full adaptive tests, built like the real Digital SAT
Two modules, adaptive routing, the real timing. Every test ends in a review of exactly what you missed and why.
Adaptive module routing
Module 2 gets harder or easier based on your Module 1 — the same structure as the Digital SAT.
Per-test mistake review
Every wrong answer tracked per test. Open any missed question to see where you slipped.
Step-by-step explanation for every question
A worked solution and the common pitfalls — for all 1,000+ questions, not a sample.
Score trend
Your score and topic mastery update after every test you take.
Step-by-step solution
A clear, worked path to the answer — every step shown, so you can follow the reasoning and repeat it on test day.
Common pitfalls:
- Misreading what the question asks
- A sign or unit slip
- Picking a tempting wrong answer
Every question in every test comes with an explanation like this
Your own homework
Paste your own homework. Same line-by-line checking.
Type or screenshot any algebra problem — from a textbook, a worksheet, anywhere. The Trainer checks your solution the same way, step by step.
Type it in —
or screenshot it from a textbook or worksheet,
then solve it line by line: every step checked, every mistake named.
Free for everyone
One question. Every day. Build the habit.
A new SAT Math question every morning — no account needed. Solve it, see the explanation, and come back tomorrow.
Everything You Need to Succeed
Built around how the real Digital SAT works — and around how you actually solve.
Line-by-line Trainer
Write your solution; every step is checked and every mistake is named.
10 adaptive tests
Full-length, two-module, adaptive — the Digital SAT format and timing.
1,000+ questions across 4 domains
Algebra, Advanced Math, Problem-Solving & Data Analysis, Geometry & Trigonometry.
Trainer Room sets by topic
Target any SAT Math topic with short sets from the 1,000+ bank — solved line by line.
Topic Mastery that tracks tests AND training
One mastery bar per topic, fed by your tests and your Trainer sessions alike.
SAT formula reference
What's given on test day and what to know by heart — one tap away while you work.
Daily streak
Build a practice habit. Your streak keeps you accountable every day.
How It Works
From signup to score improvement in 4 simple steps
Sign up free
Takes 30 seconds, no card needed
Set your goal
Tell us your SAT date and target score
Take your first test
Get your baseline score in 70 minutes
Review & improve
See every mistake explained, then drill your weak topics
Built for Digital SAT Math depth
Math-only focus. Realistic Digital SAT-style test interface. Real explanations.
Math-only focus
Not diluted with Reading & Writing. Deeper math practice with 1,000+ questions across all 4 SAT domains.
Test-interface training
Practice in a realistic Digital SAT-style test interface — on-screen timer, built-in tools, and the same question-by-question flow as the real thing.
Step-by-step explanations
Every question explained — method, common traps, faster alternatives. No "just look it up" answers.
An error taxonomy built from real student mistakes
The Trainer uses it to name exactly what went wrong.
Simple, honest pricing
Start free. Upgrade when you're ready.
Free
- 1 full adaptive test with complete explanations
- 3 Trainer problems a day, full hint ladder
- 1 problem of your own a day
- Question of the Day & streak
- Topic Mastery dashboard
- SAT formula reference
Pro
launch priceor $19/month — choose monthly
Everything in Free, plus:
- All 10 adaptive tests
- Unlimited Trainer problems
- Your own problems — up to 10 a day
- Trainer Room sets by topic
- Full analytics & per-test mistake review
- Priority support
Prices in USD. Local currency and taxes are shown at checkout. Cancel anytime — you keep access until the end of the paid period.
Not sure yet? Start with the free plan — 1 full test with complete explanations, 3 Trainer problems a day, and your score breakdown. No credit card required.
Frequently Asked Questions
Everything you need to know about SAT Math Lab
Questions? Email us at [email protected]
Start Your Journey
Create your free account and start your first adaptive practice test — no credit card required.