Death Clock vs Longevity Arc
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Death Clock
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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.
Longevity Arc
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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
Verdict
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
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.
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.
| Parameter | Death Clock | Longevity Arc |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 3 days โ better |
| Ads | Yes | No โ better |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Requires iOS | 15.0 โ better | 15.1 |
| Further details โ not scored | ||
| Size | 3 MB | 40 MB |
| Age rating | 17+ | 4+ |
| Developer | Tom Hestas | Radoslaw Jozefowicz |
In-app purchases
Death Clock
No in-app purchases
Longevity Arc
- Monthly Pro3 Days trial$2.991 Month
- Lifetime Pro$9.99
Questions
Is Death Clock free?
Is Longevity Arc free?
Do Death Clock or Longevity Arc have ads?
Which is updated more often, Death Clock or Longevity Arc?
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