Digital SAT · Adaptive · Free to start
The SAT, solved one question at a time.
Practice that adapts to your ability in real time. A tutor that explains not just the right answer but the exact mistake behind the one you picked. A plan that always knows what you should do next.
No credit card. No account required to try. Progress saves automatically — and it installs on your phone like an app.
If |2x − 3| = 7, what is the sum of all possible values of x?
- A2
- B3correct
- C5your pick
- D7
Why C is the trap
5 solves only the case 2x − 3 = 7. An absolute value equation has a second case, 2x − 3 = −7, giving x = −2, and the sum is 3.
A real question from the bank — and the feedback picking C would get you.
10,000 original questions· All 8 College Board domains· 99.9% with per-answer feedback· Adaptive difficulty (IRT)· $0 — free while we grow
Section 01 · What's inside
Built like a tutor, not a question dump
Big-name courses hand you content. Hit 1600 watches how you answer and spends your time where the points are.
Full-length adaptive tests
The real Digital SAT's format to the minute: 27+27 R&W, 22+22 Math, 32- and 35-minute modules, the 10-minute break, and module-1-decides-module-2 routing. Scored 400–1600.
An engine that knows your level
Every question is chosen for you. The IRT engine tracks your ability in real time and serves the difficulty that makes you improve fastest — never busywork, never demoralizing.
A tutor for every question
Miss one and the tutor diagnoses the specific misconception behind your answer, teaches the concept, and shows the fastest test-day method — in under a minute.
A plan that plans for you
Give us your target score and test date. You get a week-by-week plan that front-loads your weakest, highest-leverage skills and reshuffles itself as you improve.
Review that beats forgetting
Questions you struggled with resurface right before you'd forget them. Gains stop evaporating and start compounding into points.
A score you can watch move
Your predicted 400–1600 score updates after every session, with a confidence band that tightens as the engine learns your ability.
Analytics down to the micro-skill
Mastery by domain and skill — linear equations, transitions, trigonometry — so "study more" becomes "do these ten minutes first."
All of it is free today.
No trial clock, no locked chapters.
Start a session →Section 02 · How it works
Three moves, repeated until test day
Calibrate
A short adaptive diagnostic finds your starting ability in each section — no hour-long placement test.
Practice on autopilot
The engine serves the right question at the right difficulty and the tutor coaches you through every miss.
Watch the number move
Review resurfaces weak spots before they fade; your predicted score updates after every session.
Section 03 · Open book
Don't take our word for it — count it yourself
Every number on this page is computed from the question bank itself each time the site is built, and the entire bank is public. Open any question, read the solution, and judge the work before you give it your time.
10,000
questions, each with a worked solution
The whole bank is public — read any question before signing up for anything.
9,996
explain every wrong answer specifically
Not just why the right answer is right — what mistake produces each wrong one.
$0
and no account required to start
Practice, full tests, the tutor and your plan are free. No card, no trial clock.
The bank, by College Board domain
live countReading & Writing
- Information & Ideas1,432
- Craft & Structure1,545
- Expression of Ideas1,091
- Standard English Conventions1,426
Math
- Algebra1,575
- Advanced Math1,571
- Problem-Solving & Data Analysis675
- Geometry & Trigonometry685
Every one is public — browse the whole bank before you trust it with your prep.
Section 04 · The field
Why students switch to Hit 1600
| Feature | Hit 1600 | Typical course | Free question banks |
|---|---|---|---|
| Truly adaptive question selection | Some | — | |
| Feedback on YOUR specific wrong answer | — | — | |
| Spaced-repetition review | — | Some | |
| Personalized week-by-week plan | Generic | — | |
| Live 400–1600 score prediction | Some | ||
| Free to start, no credit card | — | Limited |
Section 05 · Pricing
Free while we grow
Everything is free today. A Pro tier may come later as the bank grows; if it does, what's listed as free here stays free.
Free
$0
- Unlimited adaptive practice
- Full-length & section practice tests
- AI tutor + written explanations
- Essay & writing coach
- Study plan + score prediction
- Spaced-repetition review
What we're building next
Not available yet — and nothing here is charged for today.
- A much larger item bank, reviewed question by question
- Tutor follow-ups (“explain that differently”)
- App Store / Play Store apps with offline practice (an installable app works on every phone today)
Your best score is one session away.
Stop grinding random questions. Start improving on purpose.
Start practicing free