HabitCore is a completely offline habit tracker with zero accounts, zero subscriptions, and zero ads. Built for people tired of broken-chain anxiety and subscription fatigue.

============================== Core Design: Rolling Consistency Score

Forget the crushing feeling of seeing everything reset because you missed one night. HabitCore uses a 30-day rolling window: • Miss a day? Lose one point. Your progress doesn't vanish. • Complete three days in a row? Your score climbs back steadily. • Focus on your rhythm, not perfection.

============================== Daily Encouragement, Powered by Your Data

Every morning, HabitCore generates a personalized message based on your completion rate, timing patterns, and habit correlations. Not generic motivation — something like "You've completed Reading at 22:00 for 12 consecutive days. This habit is now automatic — impressive."

============================== HealthKit Auto-Complete

Connect to Apple Health and set thresholds for hands-free tracking: • Steps goal met → Exercise habit checked automatically • Mindfulness minutes logged → Meditation habit done • Sleep recorded → Early bedtime habit complete Zero friction. Zero manual logging.

============================== Widgets: Check Off Without Unlocking

• Home Screen widgets: See today's habits at a glance, tap to check off • Lock Screen widgets: Glance at your rolling score • App Intent support: Truly one-tap completion

============================== Offline First. Privacy Always.

• No network permissions required. Works in airplane mode. • No account creation. No data ever leaves your device. • Local SQLite storage. Export to CSV anytime. • No ads. No in-app purchases. No subscriptions. Buy once, keep forever.

============================== Who Is This For?

• You who've quit habit trackers after a chain broke • You who refuse to pay monthly for a simple tool • You who care about privacy and keeping data local • You who want data to help you understand yourself, not punish you

============================== Features

• Habit creation: custom icons, colors, schedule rules, reminders • Flexible scheduling: daily / specific days / N times per week / every N days • Rolling score: 30-day window with visual dot calendar • Encouragement engine: one data-driven sentence every day • Weekly insights (v1.1): trend analysis, habit correlations, suggestions • Widgets: Home Screen / Lock Screen • Themes: Light / Dark / Parchment • Data import/export: CSV format, never locked in • Languages: English / Simplified Chinese

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HabitCore — Track habits, not anxiety.