SAT Compass

SAT Compass is an independent study tool for the digital SAT. It gives every student a clear path from a first diagnostic to test day: a personalized weekly plan, short lessons for every tested skill, original practice questions with step-by-step explanations, adaptive drills, flashcards with spaced repetition, a Mistake Notebook, and full-length SAT-style practice tests with score-range estimates. WHAT YOU GET - Every digital SAT skill: Information and Ideas, Craft and Structure, Expression of Ideas, Standard English Conventions, Algebra, Advanced Math, Problem-Solving and Data Analysis, Geometry and Trigonometry. - 2,000 original questions written for this app, each with a concise explanation, a full walkthrough, and a reason why every wrong answer is wrong; 300 mini quizzes, one set per skill at four difficulty levels. - Practice modes for any amount of time: Quick 5, Daily Drill, Skill Drill, Timed Sprint, Weakness Workout, Grammar Workout, Vocabulary Workout, Challenge Mode, Weekly Review, and a custom quiz builder. - A Mistake Notebook that saves every miss, guess, flag and slow answer, asks why you missed it, and schedules a retest. - 800 flashcards: 500 vocabulary words plus grammar and punctuation rules, transitions, formulas, properties, data terms, strategies and traps, with spaced repetition and pronunciation. - Six full-length SAT-style practice tests that share no questions and follow the digital SAT structure: two Reading and Writing modules, a ten-minute break, two Math modules, with an adaptive second module, a question navigator, mark for review, a built-in calculator and reference sheet, autosave and a detailed score report. - A study plan built from your test date, target score, availability and weakest skills, rebalanced every week without guilt when life gets in the way. - Progress analytics in plain language: estimated score range, accuracy by skill, timing, confidence calibration, mastery map, streaks and achievements. - A formula and rules library you can search by keyword. - Works offline. Light and dark mode, adjustable text size, high contrast, reduced motion, reading ruler. FREE TRIAL, THEN ONE PAYMENT Everything is free for 7 days. After that, a one-time purchase of $19.99 unlocks the full app permanently. No subscription. A useful free tier stays available: ten practice questions a day, the first lesson in every domain, the quick diagnostic, flashcards, your Mistake Notebook and the formula library. PRIVACY FIRST No real name, no location, no ads. Your progress lives on your device; create an optional account to back it up. Designed for students 13 and older. SAT Compass is an independent study tool and is not affiliated with, endorsed by, or sponsored by College Board. SAT is a registered trademark of College Board, which was not involved in the production of, and does not endorse, this product. Score ranges are instructional estimates, not official scores. All questions and tests are original SAT-style practice materials; for official practice, College Board offers free tests in its Bluebook app.