Log it. Overlay it.
Weight, steps, sleep. Log anything you can put a number on, then overlay several charts on one to compare them. Your data stays on your device.
Log in seconds
Tap “+” on a card and the keypad opens with your last value ready. Just type the number.
Overlay and compare
Mix bars and lines on one chart. Different units line up on a 0–100% scale.
Dashboard and widgets
Latest values and charts side by side, and on your home screen too.
Stays on your device
No account, no ads, no network. Export to JSON to move to another device.