Thoughts on fitness, privacy, and building apps that help people move more.
That 10,000-step goal isn't just a number — it's backed by decades of research showing how daily walking improves heart health, mental clarity, and longevity.
Apple's activity rings are brilliantly simple. But the built-in Fitness app barely scratches the surface of what your ring data can tell you.
Most fitness apps upload your health data to remote servers. Here's why that matters — and how to track your fitness without sacrificing your privacy.
