Comparison

Sonar vs Don't Die

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

Head to head
About

Sonar

Unify data from all your wearables and lifestyle trackers to gain personalized health insights. Understand your sleep, recovery, stress, and activity with AI-powered analysis and daily guidance to optimize your well-being.

Highlights
  • Syncs with multiple wearables and apps
  • AI-powered personalized health insights
  • Daily scores for recovery, sleep, and stress
  • Detailed training analytics
  • 24/7 vitals monitoring
  • Tailored health recommendations
Features
Read full description

Your body is talking. Are you listening? Sonar unifies all of your wearables, lifestyle, and biomarker data to unlock personalized insights and detection once reserved for elite athletes and biohackers. Trusted by 250,000+ users across 170+ countries, Sonar helps you cut through the noise across sleep, recovery, stress, activity, and nutrition - so you can focus on what actually matters. Sonar isn't just another health tracker. It merges the latest medical, sports and data science with AI engines that continuously surface subtle shifts and patterns across millions of data points, helping you know when to push, when to pause, and where to focus next. FEATURES: Personalized intelligence Sonar AI is a personal health agent grounded in the data across your wearables, health apps, and connected devices. Ask questions, understand changes in your scores, and get answers that reflect your actual data - not generic advice. Sonar AI also remembers personal context you give it like training goals, travel, or new routines, and factors it into how it interprets your data over time. Sync everything Fragmented data means missed signals. Connect Apple Watch, Garmin, Oura, Fitbit, Strava, Withings, MyFitnessPal, Peloton and many more. Daily scores and guidance Recovery, Strain, Sleep, Stress, Energy, and Nutrition scores help you understand your day at a glance, with practical guidance to improve. Correlations & comparisons See how any two metrics relate over time. Plot exercise against sleep, alcohol against HRV, or stress against recovery to surface the patterns driving how you feel each day. Compare up to six metrics at once, or focus the view on a single category like activity, sleep, or recovery. 24/7 vitals monitoring Track trends in HRV, resting heart rate, respiratory rate, blood oxygen, body temperature, and more, and get notified when values move outside your typical range. Training analytics All workouts in one place, with detailed summaries, heart rate zones, and training load and balance to help you build fitness without burnout. Widgets, Apple Watch & desktop app Keep Sonar close with beautiful widgets and an Apple Watch app, and explore your data on the big screen at www.sonarhealth.co Peer benchmarks See how you compare to people like you (and the broader community) across key metrics. Make it yours Choose the sections, metrics, wallpapers, and views that matter most to you, including a Favorites view for the health data you care about most. Tailored recommendations Add your medications, family history, and conditions to receive personalized checkup, vaccine, and screening recommendations based on age, sex, history, and the latest medical guidance. PUTTING PRIVACY FIRST Your health data is yours - we do not sell personal data. Our goal is to build an experience our users love, and all product and architecture decisions are built around maximizing user privacy. SUBSCRIPTION AND TERMS Sonar offers a meaningful free experience, empowering you to start transforming your health today with no strings attached. Current-day Recovery, Sleep, Strain, and Nutrition scores are free for all users. It's all part of our mission to accelerate longer, healthier, and happier lives globally. If you're looking to take your health journey to the next level, you can upgrade to Sonar Pro at any time for access to a suite of powerful features we think you'll love. Always consult with your doctor prior to making any medical decisions. Privacy Policy: https://www.sonarhealth.co/legal/privacy-policy/ Terms of Service: https://www.sonarhealth.co/legal/terms-of-service/

About

Don't Die

This app fosters a supportive community for sharing health journeys and achievements. It helps users improve their longevity score through habit mastery, local event connections, and friendly competition. Integrate wearables for automatic score calculation and progress tracking.

Highlights
  • Share health achievements with community
  • Connect with local communities and events
  • Improve health habits and Don't Die Score
  • Compete with friends and family on scores
  • Measure progress with wearable integration
Features
Read full description

- SHARE: Share your health, achievements, knowledge, workouts, and more with a friendly and encouraging community. - EXPLORE: Connect with local Don’t Die communities and events near you. - LEVEL UP: Master health habits by constantly improving your Don’t Die Score. - COMPETE: See how your Don’t Die Score compares with your friends, family, and Bryan Johnson. - MEASURE: Connect your wearable to automatically calculate your daily Don’t Die Score, and track your progress over time towards longevity best practices.

Screenshots

Sonar4 screens
Don't Die4 screens

Verdict

The call

The clearest difference is in-app purchases: Don't Die at none against Sonar's 7. Don't Die also leads on rating (4.8 vs 4.6). On price, review sentiment, ratings volume and update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Sonar sells 7 in-app purchases, starting at $5.99 per month. Don't Die asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Don't Die holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 335 and 641 respectively. Written reviews split almost evenly too, at 69% and 68% positive.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on September 21, 2026 and September 22, 2026 respectively.

Scorecard3 real differences · 7 level
Sonar versus Don't Die: the parameters behind the verdict, then further details
ParameterSonarDon't Die
PriceFreeFree
Rating4.6 (335 ratings)4.8 (641 ratings) — better
Positive reviews68.7% of reviews — better68.4% of reviews
Number of ratings335641 — better
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumAd-supported — better
DevicesiPhone, Apple WatchiPhone, iPad
Requires iOS16.616.0 — better
Further details — not scored
Size117 MB53 MB
Age rating4+17+
DeveloperSonar Health, Inc.Blueprint Bryan Johnson

Customer experience

Sonar

All ratings335 ratings
Positive90.1%
Neutral3.0%
Negative6.9%
Written reviews150 reviews
Positive68.7%
Neutral8.0%
Negative23.3%

Don't Die

All ratings641 ratings
Positive96.1%
Neutral1.9%
Negative2.0%
Written reviews98 reviews
Positive68.4%
Neutral4.1%
Negative27.6%

User reviews

Sonar

From 335 App Store ratings

What we love

  • 🚀 Seamless integration
  • 👍 Elegant data presentation
  • 💡 Comprehensive health tracking
  • 🚀 Intuitive user interface
  • 👍 Excellent customer support

Room to improve

  • 🐛 Sync issues
  • 💰 Expensive subscription
  • 🔍 Lack of transparency on pricing
  • 🔍 Limited feature set for free version

Don't Die

From 641 App Store ratings

What we love

  • 👍 Amazing community
  • 🚀 Great app interface
  • 💡 Interesting concept and mission
  • 👍 Engaging social experience
  • 👍 Seamless integration with health tracking

Room to improve

  • 🐛 Technical issues (glitches, freezing, crashes)
  • 🐛 Poor UX for certain features (e.g., replying to comments)
  • 🔒 Privacy concerns around data sharing
  • 🔧 Needs more polish and refinement

Bugs and requests

Sonar

Reported bugs

3 issues
  • Inconsistent data syncing
  • Crashes and freezes
  • Unreliable notifications

Requested features

4 requests
  • Customizable widgets
  • Deeper data analysis and insights
  • Improved historical data tracking
  • Integration with more wearable devices

Don't Die

Reported bugs

3 issues
  • Difficulty verifying phone number
  • Issues with updating fitness levels and leaderboard
  • Compatibility problems on smaller devices

Requested features

3 requests
  • Option to use the app without linking personal data
  • Improved stability and performance
  • Enhanced leaderboard and fitness tracking features

In-app purchases

7 purchases

Sonar

Subscriptions4
  • Sonar Pro - Monthly (Legacy)7 Days trial$5.991 Month
  • Sonar Pro - Monthly7 Days trial$5.991 Month
  • Sonar Pro - Annual (Legacy)7 Days trial$49.991 Year
Show 1 more
  • Sonar Pro - Annual7 Days trial$49.991 Year
One-time3
  • Sonar Pro - Lifetime$199.99
  • Sonar Pro - Lifetime$249.99
  • Sonar Pro - Lifetime$299.99
None

Don't Die

No in-app purchases

Questions

Is Sonar free?
Sonar is free to download, with in-app purchases available.
Is Don't Die free?
Don't Die is free to download, with no in-app purchases.
Which has better reviews, Sonar or Don't Die?
Don't Die is rated higher. Sonar averages 4.6 out of 5 from 335 ratings, while Don't Die averages 4.8 from 641 ratings.
Do Sonar or Don't Die have ads?
Neither Sonar nor Don't Die shows ads.
Which is updated more often, Sonar or Don't Die?
Sonar ships an update weekly, and Don't Die weekly. Most recently, Sonar was updated on September 21, 2026 and Don't Die on September 22, 2026.

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