ONE Habit Tracker vs Chay
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ONE Habit Tracker
This app helps you build lasting habits by focusing on mastering one at a time. It uses psychology-backed commitment periods, intelligent insights, and streak risk prediction to prevent failure and celebrate your wins.
- Master one habit at a time
- Commitment-based system (30, 60, 90 days)
- Streak risk prediction
- Mood tracking for trigger identification
- Visual streak counters and milestone celebrations
- Weekly analytics and progress reports
- Distraction-free interface with dark mode
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Build Life-Changing Habits That Actually Stick Stop failing at multiple habits and start succeeding with one. ONE Habit Tracker helps you build lasting habits through focused commitment and proven psychology - because mastering one habit at a time is the secret to lasting change. ACHIEVE REAL RESULTS WITH FOCUSED COMMITMENT Never lose momentum again. Our commitment-based system ensures you stay dedicated to your habit for 30, 60, or 90 days - the proven timeframe for lasting behavior change. When you graduate one habit, you'll have the confidence to tackle the next. STAY ON TRACK WITH INTELLIGENT INSIGHTS Know exactly where you stand. Your personal roadmap shows upcoming habits, weekly overviews reveal patterns, and advanced analytics help you understand what drives your success. Smart notifications keep you motivated without overwhelming you. PREVENT FAILURE BEFORE IT HAPPENS Break the cycle of broken streaks. Our streak risk prediction alerts you when you're most likely to skip a day, while mood tracking helps you identify emotional triggers that derail progress. Stay ahead of setbacks with data-driven insights. CELEBRATE EVERY WIN ALONG THE WAY Feel proud of your progress. Visual streak counters, milestone celebrations, and habit graduation ceremonies turn daily actions into meaningful achievements. Watch your confidence grow as you master each new habit. UNDERSTAND YOUR PATTERNS FOR LASTING SUCCESS Discover what makes you tick. Weekly analytics show your best completion times, mood correlations reveal optimal conditions, and detailed progress reports help you replicate success in future habits. SIMPLE, BEAUTIFUL, AND DISTRACTION-FREE Focus on what matters most. Our clean interface removes all distractions, letting you concentrate on your daily commitment. Dark mode, smooth animations, and accessibility features create an experience you'll love using every day. FREE FEATURES INCLUDE: • One active habit with daily tracking • Basic streak counting and progress visualization • Simple mood integration • Weekly calendar overview • Commitment period tracking • iCloud sync across all devices PREMIUM SUBSCRIPTION UNLOCKS: • Unlimited habit roadmap planning • Advanced analytics and insights dashboard • Streak risk prediction and early warnings • Detailed mood correlation analysis • Smart notification scheduling • Custom themes and personalization • Export and backup capabilities • Priority support Perfect for anyone serious about building better habits - whether you're starting your first habit or systematically improving every area of your life. Transform your life one habit at a time. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Chay
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Transform your life with a powerful habit tracker designed to help you quit bad habits, build positive ones, and achieve your wellness goals. Whether you're trying to quit smoking, reduce screen time, build a meditation practice, or track your daily prayers, this app provides everything you need to stay accountable and motivated. KEY FEATURES: QUIT BAD HABITS • Track days since quitting smoking, vaping, alcohol, caffeine, or any unwanted behavior • Monitor money saved from quitting with automatic savings calculator • Visual timeline showing your progress and milestones • Never lose your streak - automatic tracking from your quit date BUILD GOOD HABITS • Daily tracking for exercise, meditation, reading, journaling, and more • Customizable targets and units (minutes, repetitions, glasses, etc.) • Pre-built habit templates or create your own • Smart reminders to keep you on track REDUCE & CONTROL • Set limits for habits you want to reduce gradually • Track cigarettes, calories, or any metric you want to cut down • Visual progress indicators to show your reduction journey DIGITAL WELLNESS • Built-in social media limiting with app blocking • Set daily time limits and opening limits for distracting apps • Focus mode to help you stay productive • Track your digital detox progress PRAYER & SPIRITUAL PRACTICE • Dedicated prayer tracking with customizable prayer times • Location-based prayer time calculations • Completion tracking for each prayer • Notifications to remind you of prayer times HEALTH INTEGRATION • HealthKit integration for automatic step count tracking • Sync your fitness data seamlessly • Comprehensive health and wellness tracking MOTIVATIONAL FEATURES • Streak tracking to build momentum • Longest streak records to beat your personal best • Beautiful visualizations of your progress • Detailed statistics and insights • Priority system to focus on what matters most BEAUTIFUL & INTUITIVE DESIGN • Clean, modern interface that's easy to navigate • Color-coded habit categories • Quick-add functionality for logging habits on the go • Customizable icons and colors for each habit Whether you're on a journey to better health, improved productivity, spiritual growth, or digital wellness, this habit tracker adapts to your unique goals. Start building the life you want, one day at a time. Perfect for anyone looking to: - Break free from addictions - Build a consistent exercise routine - Develop a meditation practice - Reduce screen time and social media usage - Track religious practices and prayers - Improve overall wellness and productivity - Create lasting positive change Download now and take the first step towards a better you.
Screenshots
Verdict
The clearest difference is in-app purchases: Chay at none against ONE Habit Tracker's 3. Chay also leads on update cadence (every 11 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. ONE Habit Tracker sells 3 in-app purchases, starting at $3.99 per month. Chay asks for nothing beyond the download.
ONE Habit Tracker ships an update every 2 months, Chay every 11 days. The most recent releases landed on October 2, 2026 and October 13, 2026 respectively.
| Parameter | ONE Habit Tracker | Chay |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Every 11 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone | iPhone |
| Requires iOS | 18.0 | 18.0 |
| Further details — not scored | ||
| Size | 18 MB | 9 MB |
| Age rating | 4+ | 12+ |
| Developer | Jeff Cedilla | Vibalyze OU |
In-app purchases
ONE Habit Tracker
- Monthly$3.991 Month
- Yearly$6.991 Year
- Lifetime$9.99
Chay
No in-app purchases









