Your SAT® score reflects the patterns you've mastered — and the ones you haven't.

The Digital SAT is 120+ question patterns. Master them, and 1500+ is yours. We find the ones you haven't locked down and coach you step-by-step to get you there. Sign up for free to find out what's holding your score back,
and what to do about it.

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✓ Free Tests ✓ Targeted Practice ✓ No credit card required

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10,000+ Questions
🧠
Full Lessons on every pattern
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20 Full-Length Tests
♾️
Unlimited Subject Tests
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$75 One-Time
How the SAT actually works

The SAT rewards pattern recognition.

The wording changes. The patterns don't. That's why random prep can feel productive without actually fixing what keeps dragging down your score.

About
120 recurring patterns
show up across the Digital SAT.

Students break through score plateaus when they stop spreading effort across everything and start fixing the smaller set of patterns that actually keeps costing them points. Here's what three of those patterns look like:

Reading & Writing
Boundaries — Recognizing when no punctuation is needed
The mirror image of the other punctuation patterns — here the right answer is often no punctuation at all. Students trained to add commas miss it by reflex.
Reading & Writing
Words In Context — Cause and Effect
A passage describes a cause and its effect — you pick the word that names the link. Easy to miss when you read the words instead of tracking the logic.
Math
Linear Inequalities — Range
A real-world scenario gives you a minimum and a maximum. You translate it into a compound inequality that captures both bounds at once.
The Practice Loop

Turn every practice test into a score booster

Wrong answers aren't the end of a question — they're the start of mastering the pattern behind it.

Step 1

Miss a question

On a diagnostic, a section test, or anywhere in the platform — every wrong answer opens a door, not a dead end.

Step 2

See the pattern behind it

Not just the explanation. But also the specific pattern the question was testing.

Step 3

Drill questions just like it

Practice the same exact pattern in new contexts. Until you can consistently identify it every time.

Step 4

Generalize and lock it in

Move up to broader pattern questions at varying difficulty until the pattern is fully locked in.

How JAX Coaches

The Fastest Path to your Target Score

Don't guess what to study or when. JAX—your personal SAT coach—builds your daily plan, adapts to your progress, sequences your tests, and finds the fastest path to your target score.

1

Take Your Diagnostic

Start with a diagnostic test. JAX maps your strengths and weaknesses across key question patterns on the Digital SAT.

2

Get Your Personal Plan

JAX builds your study plan and updates it as you progress. Each day, you get 3 focused tasks designed for maximum impact — finish one or all three, the rest carry forward.

3

Practice with Purpose

Every question is chosen based on your current level. As you improve, the difficulty adapts to keep pushing you forward.

4

Track & Level Up

JAX tracks your mastery of 120+ patterns in real time. It tells you when to test, when to review, and when you're ready.

Why JAX Is Different

Stop drilling random questions.
Start fixing the patterns dragging your score down.

Most SAT Prep Platforms
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Wrong answer? Here's the explanation. Move on

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Same difficulty for everyone — either overwhelmed or unchallenged

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You figure out what to study — most students don't know their gaps

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Track scores, not skills — don't know how to improve

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Hours of practice with no clear sense of what's actually improving.

JustLockedIn with JAX
✓

Wrong answer? Drill the exact pattern behind it until it's locked in

✓

Every question chosen based on your performance data

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Builds your daily plan and tells you exactly what to do next

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Tracks mastery across individual topics and 120+ specific SAT patterns

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Twenty focused minutes a day on the right patterns beats two hours on the wrong ones

What's Inside

Everything You Need to Master the SAT.

Every package includes full access to JAX coaching and every feature below.

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JAX Coaching Engine

Your personal coach that builds daily tasks, adapts to your progress, sequences your tests, and finds the fastest path to your target score.

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10,000+ Authentic Questions

Every question mirrors how the real Digital SAT works. Organized by 120+ patterns so you master the method, not just the answer.

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20 Full-Length Adaptive Tests

Calibrated to match Bluebook® tone, structure, difficulty, and pacing with real multistage adaptivity between modules.

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Unlimited Section Tests

Focused 30-minute tests for Reading & Writing or Math. Choose Module 1 or Module 2 to target specific difficulty levels.

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Pattern Tutorials

Clear tutorials for every pattern. Learn, then practice the pattern immediately.

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Bluebook®-Matched Interface

Desmos calculator, reference sheets, annotation tools, timer, and answer eliminator. The exact environment you'll test in.

See It In Action

Built to Feel Like Test Day

Digital SAT test interface with timer, Desmos calculator, and Bluebook®-matched UI

Seamless Test-Day Experience

Our platform mirrors the official Digital SAT interface — including the on-screen timer, embedded Desmos calculator, digital reference sheets, annotation tools, and answer eliminator. Practice in the exact environment you'll test in, so nothing surprises you on test day.

LockedIn Score™ — performance by domain, pattern mastery, score tracking

Know Exactly Where You Stand

The LockedIn Score goes deeper than a practice test number. It measures consistency, difficulty progression, and pattern coverage — so you know how ready you actually are for test day, not just how you scored on one practice run.

Step-by-step answer explanation with wrong answer analysis

Go Beyond the "Right" Answer

Don't just learn what the right answer is. Learn why. Our step-by-step explanations show you how to solve each problem — often in multiple ways — and explain why the wrong answers are designed to trap you. This is how you stop repeating mistakes.

Pricing

One simple plan. Cancel anytime.

Your study plan, adaptive tests, targeted practice, and exhaustive lessons. $19/month, cancel anytime from your account settings.

Get Started for Free →

No credit card required to start

FAQ

Frequently Asked Questions

JAX is your personal SAT coach built into JustLockedIn. It analyzes your performance, builds your daily study plan, selects the right questions for your level, and tells you when to take section tests and full-length exams. Think of it as a private tutor who knows exactly where you need to focus — available every time you log in.

JAX uses statistical modeling across 120+ Digital SAT question patterns to identify where you'll get the biggest score improvements. Each day, it creates 3 focused tasks (~20 minutes each) designed to close your most impactful gaps.

Free resources give you questions but leave you to figure out what to study, when, and how. JustLockedIn with JAX coaches you through the entire process — building your plan, adapting your practice, and sequencing your tests for optimal preparation. You can use both together: Khan Academy for content review and JustLockedIn for structured, coached practice.

Yes. JAX calibrates to each student's starting point and target score. Whether your student is working toward 1100 or 1550, JAX builds the right path.

Yes. All packages are one-time payments with no subscriptions, no auto-renewals, and no recurring charges. You get full access to everything — including JAX — for the duration of your package.

That's why we offer the free trial — so you can try everything before committing. Please review the Terms and Conditions for details on our refund policy.

Yes. JustLockedIn works on any device with a modern web browser. Your progress syncs automatically so you can practice on your laptop at home and your tablet at school.