STRATA vs SAT Smart Prep

STRATA turns any subject into a full, structured course — in seconds. Type what you want to learn. Set how deep you want to go. STRATA builds a complete curriculum around it: real modules, full lessons, key concepts, definitions, notable passages, and a final quiz. No pre-packaged content. No browsing a catalog. Just your curiosity, and a course built for exactly that. LEARN ANYTHING History, physics, philosophy, finance, literature, medicine, design, law — if you can describe it, STRATA can teach it. The AI builds an original course from scratch, written at the depth and pace you choose. BUILT FOR DEPTH, NOT DISTRACTION Every lesson reads like it was written by someone who genuinely cares about the subject. Long-form prose, precise definitions, pull quotes from real thinkers, citations, formulas, and reflection prompts that make you stop and think. FREE WITH EVERY ACCOUNT — 1 AI-generated course per month — Full lesson content: prose, definitions, key points, pull quotes, citations — End-of-course quiz — Light and dark mode, adjustable text complexity SCHOLAR — $7.99/month or $64.99/year (auto-renewable) — 5 courses per month — Ink AI assistant (50 messages/month) — ask questions about what you're studying — Audio reading — listen to lessons in four natural voices — Lesson Connections — see how your courses relate to each other — Module comprehension checks — Full public library access LUMINARY — $14.99/month or $119.99/year (auto-renewable) — Unlimited courses per month — Ink AI assistant (200 messages/month) — Priority AI generation — Public course sharing — Full spaced repetition review system — All Scholar features included Subscriptions auto-renew monthly or annually. Cancel anytime in Settings → Apple ID → Subscriptions. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://koatechapps.com/privacy

Raise your Digital SAT score with focused, realistic practice — no sign-up, no clutter, no subscription. SAT Prep is built around original questions written to match the real Digital SAT format across Reading & Writing and Math. Every question comes with a full explanation, adaptive full-length mock exams recreate test day, and a spaced-repetition system makes what you learn actually stick. WHY STUDENTS CHOOSE IT • Start in seconds — no account, no paywall just to look around • Learn from every question with a clear, full explanation • Practice the exact Digital SAT format, timing, and tools TARGETED PRACTICE Build each session your way. Filter by subject, domain, skill, and difficulty, then drill your weakest areas first and improve where it counts. FULL-LENGTH ADAPTIVE MOCK EXAMS Sit a complete test that mirrors the Digital SAT: two modules per section, where the second module adapts to your first-module performance. A built-in timer and on-screen tools recreate real exam conditions. REVIEW THAT STICKS Missed and bookmarked questions flow into a spaced-repetition system (SM-2) that brings them back right before you'd forget — turning review time into long-term retention. SEE REAL PROGRESS Track accuracy by skill, time per question, and improvement over time. Spot weak areas fast and watch them become strengths. STAY CONSISTENT A daily task and daily challenge keep you on plan, and achievements reward steady streaks. GREAT ON EVERY DEVICE A clean, adaptive interface that feels native on iPhone, iPad, and desktop — with crisp rendering of math notation, charts, and figures. PREMIUM — ONE-TIME PURCHASE, YOURS FOREVER ($4.99) • Ad-free — no interstitial or rewarded ads • Unlimited full-length mock exams • Full history of results and progress • Advanced stats by skill and time per question No login. No subscription. Just open the app and start practicing. — SAT is a trademark registered by the College Board, which is not affiliated with and does not endorse this app. All practice questions are original; Reading & Writing passages are from public-domain sources.