science DEMO SANDBOX
ZERO ACCOUNTS
LOCAL
LOCAL
Advanced Prep Engine

MASTER
THE SAT.

Zero accounts. Zero costs. Pure local performance. Focus on your score, not subscriptions.

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THE DECODING SYSTEM

Our local-first approach ensures maximum data privacy and instantaneous performance. No latency, no cloud, just your path to a 1600.

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Import Questions

Drag and drop official practice PDFs or JSON exports. Our parser extracts every question, diagram, and answer key with pixel perfection.

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Take Tests

Simulate the real test environment. Adaptive timing, focus modes, and scratchpad tools designed to build high-stakes muscle memory.

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Review Stats

Deep-dive into error patterns. Categorized by math topic and reading context. Identify weak points before they cost you on test day.

System Status: Optimal

THE LOCAL PERFORMANCE
EDGE.

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Privacy Lock

Your progress data stays on your machine. We never see your scores, errors, or identity. True privacy for high-stakes prep.

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Instant Response

Zero load times. Zero spinners. The application responds as fast as your brain can think. Minimal friction, maximal focus.

SCHEMA_V4.0 Core Architecture