CoStreak: Shared Habit Tracker

CoStreak (co + streak) is the shared habit tracker for people who do better with a friend. Pair up with an accountability partner, track your streaks side by side, and build habits that actually last.

Most people who start a new habit alone quit within the first few weeks. CoStreak (formerly Habit Partner) gives you streak tracking, clear progress stats and a real accountability partner, so a new routine feels like a team effort instead of a solo grind.

YOUR ACCOUNTABILITY PARTNER
Invite a friend, partner, sibling or gym buddy and build habits together. See each other's progress, send a cheer when your partner hits a new streak, or a friendly nudge when they need a push. CoStreak works as an accountability partner app first and a habit tracker second, because showing up for someone else is what keeps you going.

HABITS WITH FRIENDS AND GROUP CHALLENGES
Start a shared challenge with your partner or a small group of friends and see who stays consistent. Use it for a 30 day challenge, workout accountability, reading before bed, drinking more water or any goal you want to stick to. A little friendly competition keeps motivation high long after day one.

VISUAL STREAK TRACKER
Watch your streak grow day by day on a clean visual calendar. The streak tracker counts every check-in, and flexible scheduling (daily, specific weekdays or custom intervals) means the app fits your real life instead of punishing you for a rest day.

PROGRESS STATS THAT EXPLAIN WHAT WORKS
Go beyond a simple checkmark. Completion rates, best streaks, consistency trends and per-habit breakdowns show you what is working and what is slipping, so you can adjust before you fall off.

SMART REMINDERS
Habit reminders that fit your routine and nudge you at the right moment. You also get an alert when your partner completes or misses a habit, so nobody falls behind quietly.

WORKS OFFLINE
No signal, no problem. Every check-in, streak and note saves instantly and syncs automatically when you are back online. Your habit tracking never waits for a connection.

BUILT FOR REAL ROUTINES
• Morning routine, evening routine or anything in between
• Daily habits, weekday-only habits or custom schedules
• Health, fitness, mindfulness, productivity, learning and social goals
• Yes or no habits, or countable ones like 8 glasses of water a day
• Clean, distraction-free daily view with one-tap check-ins

WHY PEOPLE CHOOSE COSTREAK
• Real accountability with a partner, not just a solo streak counter
• Habit tracker with friends, groups and shared challenges
• Clear stats and streak history for every habit
• Offline-first, with automatic sync
• No data collected or shared, according to our Data safety section

COSTREAK PREMIUM
CoStreak is free to download and use. CoStreak Premium is an optional subscription with a free trial. It adds unlimited habits, 90-day analytics, advanced stats, custom goals and CSV export. Prices are shown in the app before you subscribe, and you can cancel any time in Google Play.

Whether you are building a morning routine, training for a goal or trying to stay consistent with a friend, CoStreak gives you the structure and the partner to follow through.

Download CoStreak, invite your accountability partner and start your first shared streak today.