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See how Grind1600 works
Real screenshots from inside the app
Your daily command center — score, streak, XP, and today's goal at a glance.
A study plan built from your real weak areas — question by question, day by day, until test day.
Mr. Bingley was good-looking and gentlemanlike; he had a pleasant countenance, and easy, unaffected manners. His sisters were fine women, with an air of decided fashion.
— Jane Austen, Pride and Prejudice (1813)
As used in the text, what does the word "countenance" most nearly mean?
1,265
Questions in Our Bank
Written for the Digital SAT, each with a full explanation
8
SAT Domains Covered
Every Reading & Writing and Math domain on the test
98
Questions per Practice Test
Full-length and adaptive, mirroring the real Digital SAT
2h 14m
Real Test Timing
Our practice tests run on the actual SAT clock
Most students don't struggle because they aren't working hard. They struggle because nothing tells them where the work should go.
Thousands of questions, countless resources, and no direction on where to start or what to focus on.
One-size-fits-all approaches that don't adapt to your strengths and weaknesses.
Taking practice tests without understanding which concepts need the most work.
Starting strong but losing momentum without structure and visible progress.
Grind1600 reads your performance on every question and steers your study time toward the domains that will move your score most.
From your first practice question to your final score report — one system that adapts to you. Keep scrolling.
Stop guessing what to study. Tell us your scores, target, and test date — we build a session for every single day between now and the exam.
Drill exactly what the SAT tests with 1,265 questions we wrote for the Digital SAT. Filter by domain and difficulty to practice where it matters most.
Take full-length practice tests in a College Board-style interface. Know exactly where you stand before test day.
Wrong answers are collected automatically. Review them, retry them, and clear them for good — only a correct answer wipes the slate.
Visual charts that show exactly how your scores are improving, domain by domain, so you always know what to focus on.
Four steps, repeated until the score on your practice tests is the score you want on the real thing.
1
Enter your current scores, target score, and test date. That's your baseline — no hour-long diagnostic required.
Today: Algebra · 30 min
2
A day-by-day study schedule built around your weak domains, your available hours, and the time you have left.
✓ Correct — see why
3
Adaptive questions focus your time on the domains costing you the most points, with explanations for every choice.
+120 since baseline
4
Full-length practice tests and domain-level tracking show exactly what improved — and what to drill next.
Every question on the Digital SAT belongs to one of eight skill domains — and every question here is tagged to one, so your practice maps directly to the test.
Central ideas, evidence, and inferences
Word choice, text structure, and purpose
Rhetorical synthesis and transitions
Grammar, punctuation, and conventions
Linear equations and systems
Quadratics, polynomials, and functions
Ratios, percentages, and data analysis
Shapes, angles, and trigonometry
Real screenshots from inside the app
Your daily command center — score, streak, XP, and today's goal at a glance.
Still have questions? Contact support — a real person reads every email.
Answer your first question today. Your plan, your pace, your score.