Online Digital SAT prep course
SAT Sphere brings structured lessons, thousands of SAT-style practice questions, timed practice tests, flashcards and an AI tutor into one study plan. You always know what to study next and how close you are to your target score.
08
Course modules
Covering both Digital SAT sections
75
Guided lessons
Short, focused and example-driven
6,900+
Flashcards
Vocabulary, grammar and math facts
28k
SAT dictionary words
With definitions and example sentences
5,000+
Practice questions
SAT-style, with an explanation for every answer
Math
Reading & Writing
01 /The Digital SAT, decoded
The Digital SAT is a 2-hour-14-minute adaptive exam taken in College Board's Bluebook app. It has two sections, Reading and Writing followed by Math, and each section is split into two modules. Your performance on the first module decides how difficult the second one is, and your total score lands between 400 and 1600.
400–1600
Total score range
200–800
Score per section
2h 14m
Total testing time
2-stage
Adaptive by module
54 questions · 64 minutes · 2 modules
Short passages, each followed by a single question, test how well you read critically, use evidence, understand vocabulary in context and apply the conventions of Standard English.
44 questions · 70 minutes · 2 modules
Multiple-choice and student-produced response questions cover the math you need for college. A built-in Desmos graphing calculator is available for every question, and a reference sheet lists key formulas.
You take Reading and Writing first, then Math, with a 10-minute break in between. Each section has two timed modules, and the questions in the second module are harder or easier depending on how you did in the first.
Total testing time: 2 h 14 min
Reading and Writing· 64 min
Math· 70 min
02 /One platform, every tool
Most students juggle a prep book, a question bank, a vocabulary app and a calendar. SAT Sphere connects all of them, so every lesson, practice question and review session feeds the same plan, and your progress is tracked in one dashboard.
Work through structured modules for Reading and Writing and Math. Every lesson explains one skill with worked examples, then checks your understanding with SAT-style questions and instant explanations.
Sit full-length or custom practice exams in the Digital SAT module format, with section timers, an estimated score and a review of every answer.
Review vocabulary, grammar rules and formulas in short sessions. Cards you mark as difficult come back more often, so your time goes where it is needed.
Learn high-value SAT words with definitions, example sentences and quick word games that make revision stick.
Stuck on a question at midnight? Ask SAT AI for a step-by-step explanation, a hint or a similar practice problem.
Enter your test date and weekly availability, and get a day-by-day schedule that covers every module before test day.
03 /How it works
Whether your test is in three weeks or six months, SAT Sphere breaks preparation into small daily steps so you build skills steadily instead of cramming the night before.
04 /The SAT Sphere curriculum
Our online SAT course is organized into modules that mirror the skill domains College Board tests. Start with a free module, follow the recommended order or jump straight to the topics you find hardest.
40 lessons
01Fundamentals of Algebra10 lessonsExpressions, linear equations and inequalities, absolute value, ratios, percentages, exponents and roots: the core algebra behind a large share of SAT Math questions. You learn to set up equations from word problems and solve them quickly, with and without Desmos.
02Advanced Algebra and Functions11 lessonsSystems of equations, quadratics, polynomials, rational and radical expressions and exponential functions from the Advanced Math domain. Lessons show how to read a function's graph, rewrite expressions strategically and handle the harder questions in the second Math module.
03Geometry and Trigonometry10 lessonsAngles, triangles, circles, polygons, coordinate geometry and transformations, plus right-triangle trigonometry. You learn which formulas the SAT reference sheet already gives you and which relationships you need to recognize on sight.
04Data Analysis and Probability9 lessonsStatistics, probability, data interpretation, sampling and regression from the Problem-Solving and Data Analysis domain. Lessons focus on reading tables, charts and scatterplots accurately, a skill that also helps with data-based Reading and Writing questions.35 lessons
05Foundations of English10 lessonsThe groundwork for Reading and Writing: sentence structure, parts of speech, clauses and the core grammar rules the SAT tests. Ideal if English is not your first language or you want a clean start before harder question types.
06Grammar and Usage10 lessonsStandard English Conventions in depth: punctuation, subject–verb agreement, pronouns, verb tense, modifiers and sentence boundaries. Each rule is taught with SAT-style sentences so you can spot the error pattern in seconds.
07Building Vocabulary and Reading Skills7 lessonsWords in context, central ideas, inferences and text structure from Craft and Structure and Information and Ideas. You practice active reading strategies for short passages and build the academic vocabulary the test relies on.
08Writing and Language8 lessonsSentence craft, paragraph development, essay and argument structure, revising and editing, and style and tone. The lessons build the writing judgment behind Expression of Ideas questions (choosing the clearest, most logical option) and carry over to school and college application writing.05 /University Hub
Wondering where your SAT score can take you? Search universities across six continents and check whether each one requires the SAT, accepts it as optional or does not use it. Compare test policies by country, explore schools on an interactive map and build a smarter application list.
20,452+
Universities listed
233
Countries covered
6
Continents
SAT policies we track
Browse universities by continent
06 /Free SAT resources
Plan every step of your SAT journey with our free resource library: upcoming test dates and registration deadlines, scoring explained, test-day checklists and in-depth strategy articles written for international students.
Register before the deadline. Late registration costs extra, and seats at popular test centers fill quickly.
Practical strategy guides, study plans and explanations of tricky question types, written for students preparing for the Digital SAT.
How to Use Practice Tests to Pinpoint Your Weak AreasTurn full-length tests into targeted study plans.
How to Take Notes That Actually Help With SAT PrepBuild a structured SAT notebook you’ll actually use.
How to Use Flashcards to Learn SAT Vocabulary FasterContext-first, spaced-repetition flashcards that actually stick.07 /Why the SAT matters
Even in a test-optional world, a strong SAT score remains one of the clearest ways to show academic readiness. That matters most for international students, whose school grades can be hard for admissions offices to compare.
Plans and pricing
Begin with a free plan that includes a full course module and introductory SAT materials. Upgrade to unlock every module, practice exams, flashcards and SAT AI.
Try the platform with introductory materials and one full course module.
billed monthly
The complete Digital SAT course with a personal study plan.
billed monthly
Every tool we build, including custom exams and the SAT AI tutor.
billed monthly
Secure checkout with Stripe · Cancel anytime
View plan comparison08 /FAQ
Short answers to what students ask us most. Can't find yours? Visit the full FAQ or send us a message.
Yes. The free plan gives you introductory SAT materials and full access to one course module, so you can try the lessons and practice questions before deciding whether to upgrade. You do not need a payment card to sign up.
Most students study for two to three months, with 30 to 60 minutes of focused practice a few times per week. If your test is sooner, the SAT Sphere planner compresses your schedule and prioritizes the skills with the biggest score impact.
Yes. Lessons, practice questions and practice tests are built around the current Digital SAT: two sections with two modules each, short reading passages and Desmos-friendly math questions, just like in the Bluebook app.
The average SAT score is a little above 1000, so anything above 1200 places you comfortably above average, and 1400+ is competitive for highly selective universities. The right target depends on the schools you apply to, and our University Hub shows each school's SAT policy.
Yes. The lessons and practice questions are in English, the language of the test, so you build exactly the reading skills the exam rewards. The SAT word dictionary, flashcards and step-by-step explanations help you grow the academic vocabulary the Reading and Writing section expects, and the website, guides and resources are also available in other languages.
Each module has its own time limit, and your estimated score combines your accuracy in every module, weighted by how much time each question allows. You get a breakdown by section so you know what to review next. Module difficulty does not change based on your answers, so also take College Board's official Bluebook practice tests to rehearse the adaptive experience before test day.
Your Digital SAT plan starts today
