Comparison

21 Days vs Daily Longevity

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

21 Days

Features
Read full description

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. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Daily Longevity

Features
Read full description

Daily Longevity – Track the Habits That Shape Your Long-Term Health Daily Longevity is your personal health performance dashboard designed to help you measure, improve, and understand the habits that influence your long-term health. Track key metrics, analyze trends, and unlock a personalized longevity score that reflects your daily choices. Track What Matters Most Daily Longevity makes it simple to monitor the essential daily habits that impact your long-term health: • Sleep Quality - Track hours slept and see how rest influences your score • Physical Activity - Monitor daily steps and movement • Hydration - Log water intake and stay consistently hydrated • Nutrition - Track food quality and eating habits • Supplements - Record vitamins, minerals, and other supplements • Sunlight Exposure - Track time spent in natural light • Screen Time - Monitor daily device usage • Mood and Stress - Log your emotional state and identify patterns • Fasting - Track fasting windows and daily fasting hours Your Personalized Longevity Score Your daily habits are combined into a single, easy-to-understand Longevity Score. See how your choices affect your long-term health and get insights to improve your daily routines. Analytics and Insights • Daily Overview - View a full health snapshot for any day • Weekly Progress - Identify trends and patterns in your habits • Score Breakdown - See which areas help or reduce your longevity score • Interactive Charts - Track progress across multiple metrics • Calendar View - Select any date to review past entries Smart Daily Features • Customizable goals for sleep, steps, hydration, and more • Clean and modern interface • Dark mode support • All data stays on your device • Seven-day history included in the free version Upgrade to Daily Longevity Pro Unlock advanced analytics and tools to help you optimize your longevity journey. Advanced Analytics • Interactive charts for sleep, steps, stress, mood, fasting, and longevity score trends • Monthly averages and long-term performance trends • Enhanced visualizations with trend lines and insights Unlimited History and Calendar Access • Access unlimited historical data (free version keeps seven days) • Select any date to view detailed metrics and scores Food Tracking With Calories • Track foods with calorie counts • Add custom foods and build your own food list • View total daily calorie intake Custom Supplements • Add unlimited custom supplements • Ideal for personalized health routines Custom Habit Categories Track additional habits including sauna, cold exposure, meditation, stretching, breathwork, and others. Habit Reminders Set reminders for hydration, movement, bedtime routines, supplements, and other habits. PDF Export Create daily or monthly reports to share with your doctor, coach, or wellness professional. One-Time Purchase Upgrade to Pro with a single purchase. No subscriptions or recurring fees. Perfect For • Anyone improving daily health routines • Biohackers and longevity-focused individuals • Users optimizing sleep, nutrition, and activity • People tracking stress, mood, hydration, and screen time • Anyone who wants data-driven health insights Start Your Longevity Journey Today Download Daily Longevity and begin tracking the habits that matter most. With clear insights, powerful analytics, and your personalized longevity score, you will have everything you need to build a healthier and longer life one day at a time.

Screenshots

21 Days4 screens
Daily Longevity4 screens

Verdict

The call

21 Days and Daily Longevity are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. 21 Days sells 4 in-app purchases, starting at $0.99 per month and Daily Longevity sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
21 Days versus Daily Longevity: the parameters behind the verdict, then further details
Parameter21 DaysDaily Longevity
PriceFreeFree
Update frequencyEvery 3 weeks—
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size46 MB6 MB
Age rating4+17+
DeveloperiLoma TechnologyHassan Dofil

In-app purchases

4 purchases

21 Days

Subscriptions4
  • Pro Monthly$0.991 Month
  • Ultra Pro Monthly$0.991 Month
  • Pro Yearly$4.991 Year
Show 1 more
  • Ultra Pro Yearly$9.991 Year
1 purchases

Daily Longevity

One-time1
  • Daily Longevity$4.99

Questions

Is 21 Days free?
21 Days is free to download, with in-app purchases available.
Is Daily Longevity free?
Daily Longevity is free to download, with in-app purchases available.
Do 21 Days or Daily Longevity have ads?
Neither 21 Days nor Daily Longevity shows ads.

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