A personalized AI tutor that finds your weak spots, explains every mistake, and builds a custom roadmap to your target score — in 5 minutes.
Free: diagnostic test + 10 questions/day. No payment info needed.
Loved by 12,400+ students
Your Progress
Score Trajectory
Week 1
1180
Week 3
1280
Week 6
1360
Week 10
1420
94%
Accuracy
21
Day Streak
1420
Latest Score
Today's AI Focus
Linear equations + Evidence-based reading
Students Coached
Avg Score Gain
Hit Their Target
< 3 mo
Avg Time to Goal
No guessing. No wasted sessions. Just a clear path to your number.
28 questions. 20 minutes. We pinpoint exactly where you lose points across Math, Reading, and Writing.
A personalized week-by-week study plan built around your weak spots and your exam date.
Adaptive questions, AI explanations, and spaced review keep you improving every session.
Built for how students actually study — short bursts, late at night, on a phone.
Custom study plan built from your diagnostic, updated every session as you practice.
Always in your growth zone — questions calibrate to your level in real time.
Tap any wrong answer for a plain-English AI explanation or full step-by-step walkthrough.
Simulate the real digital SAT with timed modules and scaled 400–1600 scoring.
Smart Review resurfaces missed questions exactly when you're about to forget them.
Parents see real progress — streaks, accuracy by topic, score trajectory.
We don't just give you more practice tests. The SATPrep1600 engine uses evidence-based methods to permanently wire your brain for test day.
Tracks your memory decay curve and resurfaces missed questions exactly when you're about to forget them.
Mixes Algebra, Grammar, and Reading to dramatically improve strategy identification — just like real test conditions.
Forces confidence self-assessment before showing AI explanations, cementing knowledge deeper in memory.
Confidence Check
Real results from students who stopped guessing and started improving.
“I went from 1180 to 1420 in 8 weeks. My friends kept asking what my secret was. This is it.”
Maya T.
Grade 11 → Cornell Applicant
“Finally an app that explains WHY I got it wrong, not just the correct answer. The AI tutor is insane.”
Jordan K.
Grade 12
“The plan adjusts every week based on where I'm struggling. Like a private tutor at 1/10th the cost.”
Priya M.
Grade 10
Start free. Upgrade when you're ready to go all-in.
Everything you need to know before you start.
SATPrep1600 is an AI-powered digital SAT prep platform for US high school students. It combines a free adaptive diagnostic test, an AI tutor that remembers each student across sessions, AI-generated hints and wrong-answer explanations, full-length mock tests with scaled 400–1600 scoring, and spaced-repetition review. Most students practice in 5-minute sessions on their phone.
Khan Academy's official SAT prep is free and video-based with non-adaptive practice. SATPrep1600 is AI-powered and adaptive — question selection weights each student's individual weaknesses, the AI tutor remembers what's already been explained, and the system flags recurring error patterns automatically. Khan Academy is excellent as a free supplement. SATPrep1600 starts at $9/month (annual) and is built for students who want a personalized study plan and faster improvement — roughly 1/10th the cost of a private tutor.
Yes. SATPrep1600 is built specifically for the digital SAT format administered in the United States. Mock tests use the same module-based structure and scaled 400–1600 scoring as the real test.
Basic is free forever — 10 practice questions a day, 5 AI tutor messages a day, a one-time AI study plan, and one full-length mock test per month. No credit card required. Premium starts at $9/month with annual billing and includes 50 questions a day, 30 AI tutor messages, and 3 mock tests a month. Premium+ starts at $19/month with annual billing and is unlimited everything, with a parent dashboard and a +80-point score-improvement guarantee.
Yes. Premium+ includes a +80-point score-improvement guarantee — if a student completes the program and doesn't improve by 80 or more points on an official SAT, the subscription is fully refunded. Premium plans include a 7-Day Confidence Guarantee for a full refund within 7 days.
Most students who complete the program improve within a few months. SATPrep1600 reports an average score gain of +182 points and 94% of students hitting their target.
Yes. SATPrep1600 is for US students aged 13 and older. We collect date of birth at signup and don't accept accounts from anyone under 13, in line with COPPA. Parent dashboards on Premium+ are visibility-only — they show progress without surveillance-style monitoring. Full details are in the Privacy Policy.
Yes. Subscriptions can be cancelled at any time from the billing settings page. Premium and Premium+ are available month-to-month or as 6-month or annual prepay. See the Refund Policy for details on both guarantees.