Build a Habit in 21 Days.
One clear challenge. One daily check-in.
Real progress you can finish.
Why most habits fail — and why Streak21 works
Traditional habit trackers overwhelm you with options and guilt. Streak21 is different.
❌ Too many habits at once
Most apps encourage you to track everything, leading to burnout and failure.
✅ One habit at a time
Focus on one clear 21-day challenge. Finish it, then move to the next.
❌ No clear finish line
Endless tracking without a goal makes it easy to give up.
✅ A clear 21-day finish line
See your progress fill up day by day. Know exactly when you're done.
❌ Miss one day, give up completely
All-or-nothing thinking makes setbacks feel like failures.
✅ Visual daily progress
Every check-in matters. Build consistency, not perfection.
❌ Tracking without motivation
Just logging data doesn't create lasting change.
✅ Motivation through completion
Celebrate milestones and completed challenges. Feel the progress.
How Streak21 Works
Streak21 keeps habit-building lightweight: one habit, one day at a time, with a clear finish line.
Step 1 — Choose one habit
Pick something small and realistic. Read · Exercise · Sleep earlier · Save money · Meditate
Step 2 — Check in daily
Just one tap a day. Yes / No, count, amount, or time.
Step 3 — Finish the 21‑day challenge
Watch your progress fill up day by day. Reach Day 21. Claim your achievement.
Step 4 — Build consistency
The goal isn't perfection. It's building a streak you can repeat and feel proud of.
Everything you need — nothing you don't
Designed for calm focus, fast check-ins, and a clear sense of progress.
Multiple tracking types
Yes/No · Count · Amount · Time — built in, consistent, and easy to use.
Clear visual progress
21‑day progress bar with 21 segments and streak tracking so you always know what's next.
Achievements & badges
Celebrate milestones with metallic badges and completed challenges.
Today's Focus
Know exactly what matters today with prioritized habit cards.
Calm & motivating design
Clean UI with gradient cards that makes consistency feel easy.
One-tap check-ins
No clutter. No overthinking. Just quick, meaningful progress.
Track your progress with clear insights
See your habit-building journey at a glance with comprehensive statistics and analytics.
Progress you can see. Achievements you can feel.
Streak21 turns daily effort into visible progress. Every check‑in matters. Every completed challenge means something.
🏅 Badges for real milestones
Earn metallic badges for 1st Goal, 3rd Goal, 7th Goal, and more. Celebrate 1 Check-in, 7 Check-ins, 14 Check-ins, and the ultimate 21 Check-ins achievement.
🔥 Built for consistency, not guilt
You're not chasing perfection. You're building a streak you can repeat. Every day counts toward your 21-day challenge.
1st Goal 
7 Check-ins 
21 Check-ins 
7 Days Streak 
21 Days Streak Start your 21‑day challenge today
No pressure. No shame. Just one habit, one day at a time.