21 Days

Build habits that actually stick — 21 days at a time.

21 Days Challenge is a simple and powerful habit tracker designed for real, lasting change. Pick a goal, commit for 21 days, check in daily, and watch your streak grow one day at a time.

Whether you want to drink more water, read every day, exercise, meditate, or build any daily routine, 21 Days Challenge keeps you focused, motivated, and consistent.

KEY FEATURES

• Multiple Habit Challenges Track several habits at once including health, fitness, learning, productivity, mindfulness, and more — all from one home screen.

• Streaks & Milestones Watch your streak grow daily. Reach milestones at Day 7 and Day 14, and unlock badges as you build consistency.

• Daily Journal Add quick notes, moods, or reflections with each check-in. Discover patterns and understand what works best for you.

• Insightful Stats View beautiful charts showing completion rates, mood trends, and overall progress.

• Smart Reminders Set custom reminders for each challenge at the times that work best for you.

• Private by Default Your data stays on your device. Optional cloud sync is designed with privacy in mind.

HOW IT WORKS

1. Pick your challenge — choose a suggested habit or create your own
2. Check in daily — track progress with a single tap
3. Build momentum — strengthen routines through consistency

BUILT FOR EVERY KIND OF GROWTH

• Health & fitness — water, sleep, movement • Learning & focus — reading, studying, skill-building • Productivity — deep work, discipline, routines • Mindfulness & wellness — meditation, gratitude, journaling • Creativity — writing, drawing, creating • Personal goals — anything that matters to you

Start your first 21 days today with 21 Days Challenge — your habit tracker, streak builder, and daily journal for lasting change.