Comparison

Death Clock vs Longevity Arc

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

Head to head
About

Death Clock

Features
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Death Clock is a private, no-login tool for probabilistic longevity projections. Complete a structured assessment across lifestyle and health factors, then view: - projected age intervals - percentile vs. demographic cohort - model-based scenario comparisons Built for clarity: - 100% free - no account creation - no paywall - no data persistence in account profiles The projection engine uses Monte Carlo simulation and statistical mortality modeling to generate ranges, not certainties. Important: this app is for informational use only and does not provide medical advice, diagnosis, or treatment.

About

Longevity Arc

Features
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Longevity Arc turns your Apple Health data into five clear longevity signals. Instead of digging through scattered charts, you can see HRV, fitness, sleep, gait, and cardiac load together in one simple dashboard designed to help you understand how your body is trending over time. Built for people who care about healthspan, recovery, and long-term performance, Longevity Arc helps you spot changes faster and focus on the metrics that matter most. The app is designed to feel simple at a glance while still giving you useful depth when you want to explore trends and patterns. What you can do in Longevity Arc: - Track five science-inspired longevity signals from Apple Health in one place. - Review your HRV, sleep, fitness, gait, and cardiac-load trends without jumping between different screens. - Get a clearer picture of how daily habits may affect your long-term trajectory. - Use a private, HealthKit-powered experience built around your own data. Why people use Longevity Arc: - Apple Health already contains valuable signals, but they are often fragmented and hard to interpret quickly. - Longevity Arc brings those signals together into a more readable view so you can check your status in seconds. - The focus is not noise or endless scores - it is a cleaner way to monitor meaningful change over time. Privacy and data: - Longevity Arc works with your Apple Health data. - You stay focused on your own signals, trends, and progress. Ideal for: - Biohackers tracking recovery and resilience. - Health-conscious users who want a simpler Apple Health dashboard. - Founders, athletes, and everyday users trying to balance stress, fitness, and sleep over time. Privacy Policy: https://longevityarc.app/privacy Terms of Use: https://longevityarc.app/terms

Screenshots

Death Clock4 screens
Longevity Arc4 screens

Verdict

The call

The clearest difference is in-app purchases: Death Clock at none against Longevity Arc's 2. Longevity Arc's advantage is ads (none vs shown) and update cadence (every 3 days vs every 2 months). On price, device support and iOS requirement there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Longevity Arc sells 2 in-app purchases, starting at $2.99 per month. Death Clock asks for nothing beyond the download.

UpkeepUpdate frequency

Death Clock ships an update every 2 months, Longevity Arc every 3 days. The most recent releases landed on September 8, 2026 and September 19, 2026 respectively.

Scorecard3 real differences ยท 3 level
Death Clock versus Longevity Arc: the parameters behind the verdict, then further details
ParameterDeath ClockLongevity Arc
PriceFreeFree
Update frequencyEvery 2 monthsEvery 3 days โ€” better
AdsYesNo โ€” better
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPodiPhone, iPod, Apple Watch
Requires iOS15.0 โ€” better15.1
Further details โ€” not scored
Size3 MB40 MB
Age rating17+4+
DeveloperTom HestasRadoslaw Jozefowicz

In-app purchases

None

Death Clock

No in-app purchases

2 purchases

Longevity Arc

Subscriptions1
  • Monthly Pro3 Days trial$2.991 Month
One-time1
  • Lifetime Pro$9.99

Questions

Is Death Clock free?
Death Clock is free to download, with no in-app purchases.
Is Longevity Arc free?
Longevity Arc is free to download, with in-app purchases available.
Do Death Clock or Longevity Arc have ads?
Death Clock shows ads; Longevity Arc does not.
Which is updated more often, Death Clock or Longevity Arc?
Death Clock ships an update every 2 months, and Longevity Arc every 3 days. Most recently, Death Clock was updated on September 8, 2026 and Longevity Arc on September 19, 2026.

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