Mrkr is a simple habit tracker that gets out of your way. No accounts. No ads. No subscriptions. No motivational quotes. Just a clean daily checklist with streaks and stats. WHAT YOU GET: - Track up to 20 daily habits - See current and longest streaks - Calendar heat map of your progress - Weekly and monthly completion stats - Optional reminders (you choose, we don't nag) - Streak freeze for grace days - Full data export (JSON) - Dark and light themes - Works 100% offline WHAT YOU DON'T GET: - Ads (none, ever) - Social features or leaderboards - Gamification, XP, badges, or rewards - An account to create - A subscription to forget about YOUR DATA STAYS ON YOUR DEVICE Mrkr collects zero data. No analytics. No tracking. No network requests. Everything lives on your device, and you can export it anytime. Pay once. Track forever. Built for people who just want to check a box and move on with their day.