
Zest: Longevity
Live healthier for longer
About
Discover your body's internal age and receive personalized insights to slow your aging rate. This app uses at-home tests and machine learning to analyze health metrics like cardiovascular fitness and cognitive function, providing tailored recommendations for improvement.
What's New in Zest
3.3.2
April 27, 2025
This update focuses on improving the user experience. Here's what's new: - More UX enhancements Update today and enjoy these latest enhancements!
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FAQ
What is Zest's Functional Age?
Zest's Functional Age measures your body's internal biological age, going beyond chronological age. It analyzes various health metrics to provide a holistic view of your body's performance and aging rate.
How does Zest measure Functional Age?
Zest uses a simple at-home test involving a finger prick and quick questions. This data, along with digital biomarkers, is analyzed using machine learning to determine your Functional Age.
What kind of health metrics does Zest analyze?
Zest analyzes metrics including cardiovascular fitness, metabolic health, cognitive function, and hormonal health to provide a comprehensive understanding of your body's internal age.
Is Zest a medical device?
No, Zest is not intended for diagnostic or treatment purposes and does not constitute healthcare advice. It is designed for healthy individuals to better understand their bodies and prevent future diseases.
Who developed Zest?
Zest was developed by a team of medical doctors, longevity scientists, and researchers, and is backed by over 100 clinical trials.
How often is Zest updated?
Zest is updated frequently, with the latest version being 3.3.2 released on April 27, 2025. The team constantly evaluates recommendations based on the latest research.
What devices does Zest support?
Zest is currently supported on iPhone and iPod devices.
Does Zest have ads?
No, Zest is ad-free, allowing users to focus on their health insights without interruptions.




