Know your biological age
See an estimate of how your body is aging compared with your chronological age—and how it changes over time.
A clearer view of how you’re aging
Live healthier. Stay capable longer.
Surf80 brings your Apple Health data, lifestyle, fitness, and optional lab results together to help you understand your biological age—and what to focus on next.
One connected healthspan view
Apple Health
Lifestyle & fitness
Optional labs
Understand your healthspan
Your health data, translated into direction.
Health data can be overwhelming. Surf80 makes it easier to see the bigger picture, understand what is shaping your healthspan, and decide where your effort can make the greatest difference.
See what shapes it
Understand which areas are supporting your healthspan and which may offer the most meaningful room for improvement.
Focus on what matters
Turn complex signals into clear, actionable priorities so you know what to work on next—not just what to measure.
Your health, connected
The full picture is more than one number.
Surf80 combines the signals that reflect how you live, move, recover, and age. The result is a more useful view of your healthspan—built around your real life.
Apple Health
Activity, fitness, cardiovascular health, sleep, recovery, and more.
Lifestyle & fitness
Habits and context that help make your health signals more meaningful.
Lab results Optional
Add biomarkers when you want an even richer view of your healthspan.
From signals to priorities
Less noise. More forward motion.
Surf80 is designed to move beyond charts and scores. It connects the dots across your data, surfaces the areas with the greatest potential impact, and helps you build a clearer path forward.
Bring signals together
Start with the health and lifestyle data you already have.
Reveal the drivers
See how different areas may be influencing your healthspan.
Choose your next focus
Put your attention where it can matter most for the long term.
The idea behind Surf80
More life in your years.
The goal isn’t simply to live longer. It’s to stay healthy, strong, and capable enough to keep doing what you love for decades to come—to surf at 80, explore the world at 90, or take on a new challenge at 100.
Private by design
Your health data should stay yours.
Health information is deeply personal. Surf80 is built around a simple principle: use your data to help you, not to build a business around your data.
On-device processing
Your health analysis stays on your iPhone.
No account required
Start without creating another health profile online.
No health-data backend
Your personal health data is not stored on Surf80 servers.
Never sold
Your health data is never sold to advertisers or data brokers.
Build toward your future self.
Understand where you are. Focus on what matters. Keep moving forward.