Weight Diary

Weight Diary is a lightweight, account-free weight tracker built around one idea: log your weight in 3 seconds every morning, and watch the trend — not the daily noise. No sign-up, no server, everything stays on your device.

■ 3-second logging with a dial
Swipe a horizontal dial or type the number directly, down to 0.1kg. Entry starts from your last logged value, so most days it's just a swipe or two. Already logged today? Confirm to overwrite. Forgot a day? You can log it retroactively.

■ A 7-day moving average trend chart that keeps you calm
Body weight bounces around day to day from water and sodium. Weight Diary plots your actual readings as dots alongside a smooth 7-day moving average line, so you can see the real direction at a glance. Toggle between 1 week / 1 month / 3 months / all time, with your goal weight shown as a reference line.

■ Goals with a countdown
Set a goal weight and optional goal date to see your D-day countdown, remaining kg, and progress bar right on the home screen.

■ Stats that matter
Weekly/monthly averages and changes, your min/max weight, total change, a calendar heatmap of your logging streak, and an automatically calculated BMI (for reference only) once you enter your height.

■ Streaks and a morning reminder
A streak counter keeps your daily logging habit visible, and a local notification at a time you choose (default 8 AM) gives you a gentle nudge.

■ Entry list and notes
Browse every past entry in a list, edit or delete any of them, and add a short note like "cheat day" if you like.

■ No account, fully offline, privacy-friendly
No sign-up required, and all core features work without an internet connection. Everything you enter — weight, height, notes — stays stored only on your device and is never sent to any server.

■ Korean / English support
Switch the app language and kg/lb unit anytime from Settings.

Weight Diary is free and supported by ads. BMI and other figures shown are for reference only and are not a medical diagnosis.