21 Days Challenge
21 Days Challenge has 10,290 installs (+1.8% this week), #9,483 of 105,028 in Health & Fitness.
Description
Build habits that actually stick — 21 days at a time.
21 Days Challenge is a simple, powerful habit tracker designed for real, lasting change. Pick a goal, commit for 21 days, check in daily, and watch your streak grow — one tap 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.
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🌟 KEY FEATURES
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✅ Multiple Habit Challenges
Track several habits at once — health, fitness, learning, productivity, mindfulness, and more — all on one home screen.
🔥 Streaks & Milestones
Watch your streak climb day by day. Hit milestones at Day 7 and Day 14, and unlock badges as you build your habit.
📓 Daily Journal
Log a quick note, mood, or reflection alongside your habit check-in. Spot patterns and understand what's really working.
📊 Insightful Stats
Beautiful charts showing completion rates, mood trends, and lifetime progress — so your growth is always visible.
⏰ Smart Reminders
Custom reminders per challenge, at the right time for you. Gentle nudges, never naggy.
🔒 Private by Default
Your data lives on your device. Optional cloud sync with end-to-end privacy. Nothing sold, ever.
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💡 HOW IT WORKS
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1️⃣ Pick your challenge — choose from curated habits or create your own
2️⃣ Check in daily — one tap, add a note or mood if you like
3️⃣ Watch your streak grow — build identity, not just behaviour
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🎯 BUILT FOR EVERY KIND OF GROWTH
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- Health & fitness — water, sleep, movement
- Learning & focus — reading, studying, skill-building
- Productivity — deep work, discipline, daily routines
- Mindfulness & wellness — meditation, gratitude, journaling
- Creativity — write, draw, or create something every day
- Personal goals — anything that matters to you
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Start your first 21 days today. Download 21 Days Challenge — the habit builder, streak tracker, and daily journal that works.
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Growth change in installs
| Per | Growth | Growth % | Actual change | Measured over |
|---|---|---|---|---|
| day | Not enough history yet | |||
| week | +174 | +1.8% | +404 | 16.3 days |
| month | Not enough history yet | |||
| year | Not enough history yet | |||
How these figures are measured
Change in installs, scaled to each window from the real gap between crawls. A window needs a full period of history before it reports anything.
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