NextGen AI Digital SAT Prep vs MistakeLab

Stop guessing. Start improving. NextGen AI Digital SAT Prep targets your weakest topics with AI-powered drills, full-length adaptive practice tests, and a live score predictor — built for the new College Board Digital SAT (Reading & Writing + Math). 7-day free trial. No account required to start. WHAT YOU GET • 6,000+ pre-loaded SAT questions with full worked explanations • 2,000+ flashcards for vocab, grammar, and math formulas • Full-length adaptive practice tests that mirror the real Digital SAT • AI Tutor — open-ended SAT help on demand • "Explain" any question for a step-by-step breakdown • "Generate more practice" on your weak topics • Live score predictor that updates as you practice • Personalized study plan from your target score and test date • Mistake notebook — every wrong answer auto-tracked and resurfaced • College match — 1,100+ U.S. colleges suggested from your projected score WORKS OFFLINE All 6,000+ questions, explanations, flashcards, and full-length tests run fully offline. Internet is only needed for AI features and fetching subscription status. PRIVACY-FIRST DESIGN • No account or sign-in required • No ads • No third-party analytics SDKs — no Firebase, Mixpanel, Amplitude, Sentry, or Crashlytics • Study progress is stored locally on your device UNIVERSAL APP Runs natively on iPhone and iPad. PREMIUM SUBSCRIPTION Unlock unlimited practice questions, unlimited AI Tutor messages, unlimited full-length tests, the auto-tracked mistake notebook, live score prediction, personalized study plan, and college match. • Monthly Premium • Annual Premium — most popular (saves vs. monthly) • 7-day free trial on first subscribe • Cancel anytime in App Store → Subscriptions Payment will be charged to your Apple ID at confirmation of purchase. Subscriptions auto-renew at the displayed rate unless cancelled at least 24 hours before the end of the current period. Manage or cancel subscriptions any time in App Store → Subscriptions. LEGAL Terms of Use (EULA): https://devappsai.com/terms.html Privacy Policy: https://devappsai.com/privacy.html

Stop making the same mistake twice. MistakeLab is the ultimate wrong answer journal (error log) and spaced repetition assistant engineered for elite students preparing for high-stakes competitive exams. Whether you are studying for the SAT, ACT, GMAT, GRE, LSAT, MCAT, CFA, or college finals, keeping a structured "error log" is the single most effective strategy recommended by top-scoring students (99th percentile) worldwide. MistakeLab automates this process, transforming your failures into exam-day breakthroughs. ▸ SNAP & EXTRACTION WITH ON-DEVICE OCR Stop wasting precious study time typing out long prompts. Instantly take a photo of any failed question from a prep book, worksheet, or computer screen. Apple's native OCR (Live Text) extracts the question text locally in seconds, creating a clean record automatically. ▸ DIAGNOSE THE ROOT CAUSE (COGNITIVE TAXONOMY) To fix a mistake, you must understand why you made it. Classify your errors under 5 distinct cognitive categories: • Content Gap: You did not know the underlying formulas or rules. • Careless Mistake: You knew the concept but made a silly calculation slip. • Misread: You missed a crucial word (e.g. "except", "not") or misread the question stem. • Concept Trap: You fell for a logical trap or distractor option. • Time Pressure: You ran out of time or panicked under the clock. Add your custom notes and actionable remediation rules (lessons learned) to ensure you don't repeat them. ▸ SCIENTIFIC SPACED REPETITION (SM-2 SRS) Reviewing a correction immediately after seeing it creates a false sense of fluency. Powered by a local adaptation of the SuperMemo-2 (SM-2) algorithm, MistakeLab schedules review sessions at mathematically optimal intervals (Day 1, Day 3, Day 7, etc.) based on your performance. • Daily Review Queue: Easily work through questions scheduled for revision today. • Fluid gestures: Swipe right to master, swipe left to keep in queue. • Rich haptic feedback via CoreHaptics for an engaging, physical review loop. ▸ ANALYZE YOUR WEAKNESS PATTERNS Stop guessing what to study. The analytics engine uses native Swift Charts to visualize: • Cognitive Failure Breakdown: Check if you suffer more from careless slips or core concept gaps. • Topic Weakness Matrix: Find which exam sections (e.g. Quantitative, Reading Comp) have the highest error density. • Learning Curve: Monitor your progress as you turn active errors into mastered concepts. ▸ 100% OFFLINE & PRIVACY FIRST Your study data is yours alone: • 100% Offline: No account signups, no external servers, no internet connection required. Review anywhere, even in library basement study rooms. • Zero Data Collection: We do not collect, store, or transmit your name, text, or photos. • PDF Booklet Export: Generate a clean, formatted PDF of your mistakes to print out or share with your tutor. Eliminate your blind spots, boost your score, and walk into your exam room with absolute confidence. Start your error journal with MistakeLab today. Support: contact.devotellix@gmail.com