HabitCore: Daily Tracker

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.

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Core Design: Rolling Consistency Score
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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.

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Daily Encouragement, Powered by Your Data
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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."

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HealthKit Auto-Complete
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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.

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Widgets: Check Off Without Unlocking
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• 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

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Offline First. Privacy Always.
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• 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.

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Who Is This For?
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• 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

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Features
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• 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.