168 reviews
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Everyone
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Everyone
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About this app

Ever wonder how your daily choices—from the food you eat to the quality of your sleep—are shaping your future? What if you could get a science-based glimpse into your long-term health and learn how to add years to your life?

Welcome to LifeWatch, your personal longevity calculator.

LifeWatch is a groundbreaking health app that provides a dynamic estimate of your life expectancy and healthspan based on a holistic view of your lifestyle, biometrics, and genetics. Go beyond simple fitness tracking and discover the real-world, data-driven impact of your choices. Our advanced algorithm, built on the latest scientific studies and actuarial data, translates your habits into the most important metric of all: time.

KEY FEATURES:

🧬 Holistic Health Analysis: LifeWatch connects the dots between different areas of your life, showing you how they work together to influence your longevity potential.

📊 Dynamic Life Expectancy Model: Our core feature is a life table that updates as you do. Make a positive change and instantly see the potential impact on your projected lifespan. See how quitting smoking could add back a decade!

🥗 Nutrition Impact: Log your dietary patterns and see how your food choices stack up. Discover the powerful, life-extending benefits of a Mediterranean diet versus the risks of high processed food consumption.

🏃‍♂️ Activity & Fitness Tracking: Sync your fitness data to see how meeting physical activity guidelines, hitting your daily step count, and strength training all contribute to a longer, healthier life.

💤 Sleep Consistency Score: It's not just how long you sleep, but how regularly. Track your sleep duration and consistency to understand why 7-8 hours of stable sleep is a cornerstone of longevity.

🔬 Genetic Risk Insights: (Optional) Securely integrate data from genetic testing services to understand how predispositions like elevated Lp(a) or cholesterol affect your baseline, and more importantly, how a great lifestyle can overcome them.

HOW IT WORKS:

Build Your Profile: Provide your data across our key pillars: demographics, nutrition, exercise, sleep, and optional genetics... the app is offline and the data won't leave your device.

Receive Your Baseline: Get an initial, science-backed life expectancy projection based on your current lifestyle.

Simulate & Improve: Use the app to ask "what if?" See how adding 30 minutes of walking or improving your diet can add months or even years to your projection. Track your progress and watch your potential lifespan grow!

Your future is not set in stone. The small choices you make every day can lead to a profound difference over a lifetime. Let LifeWatch be your guide and motivator on the journey to a longer, healthier future.

Download LifeWatch today and take control of your time.
Because life is finite. Make it count!
Life is finite. Make it count! See how habits and biology affect your lifespan.
Updated on
Dec 9, 2025
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Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
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  • No data collected
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Ratings and reviews

167 reviews
Tim Lawlor
May 26, 2026
Just to confirm, the displayed time is 'remaining time', correct? At 34yrs old male, the absolute max remaining time for all possible positive factors provides the value 51, thus giving 85 at a max life expectancy. Does none of the scientific research show a path to 90+ years old? A nice add for the app: a toggle to show total life expectancy 'current age+remaining time' giving the actual year; then a margin of error, like a +/- years to account for outliers.
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Michael Taylor
April 27, 2026
-3, damn it. Looks like I'm living on borrowed time. Well I'll keep at it, there are definitely some sliders I can improve. For the time being I'm just glad I'm not living in a Black Mirror episode because it really would have sucked to have entered the data and died the moment my number went negative.
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Petr Nálevka (Urbandroid)
April 27, 2026
Hello Michael, many thanks for your review :).. Well ignoring all the statistical errors in the process and all the unknown, having -3 actually means you are doing very well compared to the average peers :)..also I'm sure you can improve on the sliders as well..lots of greetings! Petr
Stephan Cibrowius
October 14, 2025
nice - a death clock - maybe a little bit too much motivation, but I hope it helps the creator to deal with his life better. I can imagine the truth is hitting hard, but to make the people more nuts and give them a timer...
5 people found this review helpful
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What’s new

Round fonts, new icons