Available on iOS
Log your weight daily, visualize your progress with smart charts, and stay motivated every step of the way.
Download on the App Store
What Trajectory does
See exactly where your weight is heading based on your current trend — not just where it’s been.
Log your weight in seconds. Trajectory smooths out natural daily fluctuations to show your real trend.
Set a target weight and watch your trajectory converge toward it, one day at a time.
Your data stays on your device. No account required, no data sold, no surprises.