Thirty Day Challenge

Thirty Day Challenge helps you build habits offline. Start on any day and choose 7/14/30 days. Lock future days or allow preview. Use ready-made templates (Fitness, Mindfulness, Study, Finance).
Features
• Flexible start date; pick 7/14/30-day program
• Lock future days or preview upcoming tasks
• Templates to create a new challenge fast
• Points & streaks; Freeze day (1–2 passes without breaking streak)
• Notes and optional photo proof (system photo picker)
• Progress bar, calendar heatmap, charts & completion time stats
• History log; duplicate or reset a program; bulk edit titles/descriptions
• Backup/Restore via JSON (import/export)
• “Today” screen focused on one action
• Works fully offline, no account
• Ads: small banner at the bottom
Permissions: Photos are optional and used only to attach a proof image via the system picker.