About Titan

Health is
what you make of it

Hey there,

For years I tracked everything I could. I wore every device that promised to explain my body and tried every app that promised to make sense of the device. RIP Nike FuelBand. When the apps ran out of answers, I kept spreadsheets. Sleep, resting heart rate, every workout, all logged by hand. I had more numbers than anyone needs. What I never had was an answer to the one question that matters on a given morning. Train hard, go easy, or rest.

The problem was context. An HRV reading means nothing on its own. The same number is a great night for one person and a rough week for another. A reading only means something against your own normal, and no app I used would show me that. So I kept picturing the screen I wanted. One glance, my numbers against my own baselines, and a clear read on the day. That screen became Titan.

Every morning I open it and check three things. Recovery scores my HRV and resting heart rate against my baseline. Sleep grades last night from 0 to 100 and keeps a running tally of sleep debt, so a string of short nights shows up before I feel it. Exertion turns minutes in each heart-rate zone into a training load, with a daily target that moves with my recovery and my recent work. When I want to know whether a habit helps, I tag it in the Journal, and Titan ranks each tag by its effect on Recovery, Stress, Sleep Score, and Sleep Debt.

Titan Age is the part I am proudest of. Once a week it takes 11 signals, sleep consistency, resting heart rate, zone 2 minutes, VO2 max, and lean mass among them, and turns them into a biological age. It names the three drivers that moved it most that week and shows how many years each input adds or takes away. I wanted a number I could argue with, so the math sits in the app where you can check it.

Your health data stays on your phone. Titan processes it there and stores it nowhere else. There is no account and no sign-in. It reads from Apple Health, so sleep from AutoSleep, Eight Sleep, and other trackers reaches it too. Apple Watch still gives the fullest picture.

I built and tested Titan against my own Apple Health export, years of data and thousands of workouts, and it stays fast with all of it loaded. I spent years building training products at Freeletics, and this is the app I wanted the whole time. Well designed, and readable at a glance.

If you use Titan, I want to hear what you want improved. Send it to me and I will read it.

Stephen M. Walker II