Study Plan
Daily blocks rebuilt from your exam date and the skills you keep losing.
The Digital SAT, solved.
Adaptive mocks, a 29-skill diagnosis and Lolo — an AI tutor that reads your own answers before it explains anything.
3,400+ questions29 skills ranked12 signals per answer
dsatai.com/dashboard
15full-length adaptive mocks
29skills ranked by points lost
12signals read per answer
3,400+questions in the bank
Our mission is to make SAT prep honest, adaptive and free — so a score reflects what a student can do, not what they could afford.
No subscriptions, no upsells, nothing locked behind a card. One model of the student, built from their own answers.
Nine tools. One model of you.
What you do in any one of them changes what the other eight give you next.
Mock Tests
Full-length adaptive sittings in the real 4-module Bluebook format: 98 questions, 2h 14m.
Question Bank
3,400+ questions across 29 skills, each tagged to what it actually tests.
Vocabulary
Spaced repetition on the words and terms the exam uses, scheduled by retention.
AI Tutor Lolo
Reads your last 200 answers before it explains the mistake you made.
Exam Drills
Ten-question sets aimed at one skill, timed to the seconds you'll actually have.
Analytics
Mastery, accuracy and points-to-recover for every skill — not just a score.
Saved & Mistakes
Every question you got wrong, resurfaced until it stops being wrong.
Lessons
Short, visual walkthroughs for the concepts you were never taught.
Three steps. No setup form.
The first test is free, scored, and takes one sitting. Everything after it is built from what that sitting measured.
01
Take one adaptive mock
98 questions in the real Bluebook format. It is scored the moment you finish — no setup form before it.
2h 14m · one sitting02
See all 29 skills ranked
Every skill is measured from your own answers and ranked by the points it is costing you, not by how hard it feels.
Ready when you submit03
Follow a plan that adapts
Practice, review and Lolo all read the same model, so every answer re-weights what you see next.
Rebuilds itself as you goThe real exam, before exam day.
98 questions in the real Bluebook layout — the same modules, timer, Highlight, Mark for Review and answer eliminator you will see on test day.
dsatai.com/mock-tests
Meet Lolo: your AI tutor
Ask anything SAT-related. Lolo answers from the best practice — and from your own recent answers.
Ask anything
Any SAT question, explained step by step.
Quiz me
A quick check on the skill you just studied.
Knows your weak spots
Starts from your weakest skills and last mock.
dsatai.com/lolo
What one sitting tells you.
A score says how you did. These are the kind of findings a single mock produces — the part a score alone never says.
Sample diagnosisReading & Writing
You changed a right answer to a wrong one on 4 of 9 Transitions questions. Your first instinct was the better one.
Transitions+40 pts at stake
Sample diagnosisMath
Linear functions: correct when you take your time, wrong under 45 seconds. That is a speed gap, not a knowledge gap.
Linear functions+38 pts at stake
Sample diagnosisReading & Writing
Words in Context errors cluster after minute 25 of a module, so tonight's plan puts them at the start of the session.
Words in Context+55 pts at stake
Your score, drawn from evidence
An illustration of ten practice weeks: every bar is a sitting, and every sitting re-weights the skills underneath.
Sample · Predicted SAT score
1390+210 since week 1
Every sittingLatest
W1W2W3W4W5W6W7W8W9W10
10mock sittings
29skills measured
12signals per answer
Free. All of it. No asterisk.
Unlimited mocks, the full 29-skill report, the whole question bank and Lolo — without a card, a trial clock or a locked feature.
Unlimited full-length mocksAll 29 skills, rankedLolo, unlimitedNo card, ever
Start free It takes a minute. Nothing to cancel later.
Free tools, no account
Three tools we built for our own students, open to anyone — no email wall, no sign-up loop.
Score calculator
Turn raw module scores into an estimated 400–1600, with the range explained.
Open calculatorDigital SAT format
Modules, timing, question types and how the adaptive second module works — on one page.
Read the guideCertificate check
Verify a DSAT AI practice certificate by its ID — for schools, tutors and parents.
Verify an IDFrequently asked questions
Something missing? Write to hello@dsatai.com — a person answers.
Are these real SAT questions?
Yes. The bank is built from questions the College Board has published, each carrying its own official difficulty band, and the mocks follow the real two-stage Bluebook format.
How is my score predicted?
From your answers, with item-response theory — the same family of models the real test uses. You always see a likely range, and an early estimate says that it is early.
How is Lolo different from a general chatbot?
Lolo reads your own practice history before it answers, and it cannot change your score or your plan — those only move on evidence from your answers.
How long is a mock test?
98 questions over 2h 14m, in the same module order and timing as the real exam. You can leave and come back to an unfinished sitting.
Do I need to install anything?
No. Everything runs in the browser. Practice works on a phone; for mocks we recommend a laptop, the way you will sit the real test.
Start with one free mock.
98 questions, a real score report, and all 29 skills ranked by the points they're costing you.
Get started for free2h 14m to sit · scored the moment you finish · nothing to install