I Lost 40kg. Then I Built the App That Fitness Companies Don’t Want You to Use.
After losing 40kg, one developer built Kilo—an open-source, local-first fitness tracker that stores everything on your phone. No accounts, no paywalls, no data lock-in. It’s a direct challenge to the subscription economy that treats your health data as a rental asset. Here’s why owning your progress is the most important workout decision you’ll make.