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One-tap logging
Log your weight in under 5 seconds. Open the app, tap, done.
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Weight Days
Track your weight. See your progress. Stay consistent.
Coming soon
Clean, elegant body tracking. No noise.
Weight Days is designed for people who take their health seriously — without the noise of diet apps or calorie counters. Log your weight in seconds, watch your progress unfold in beautiful charts, and let the data tell your story. Built for simplicity. Designed to keep you coming back every day.
Multiple profiles
100% private
12 languages
Built for consistency
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7-day moving average
Smart charts smooth out daily fluctuations so you see real trends, not noise.
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Body measurements
Track waist, hips, chest, arms, and more — the changes the scale doesn't always show.
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Multiple profiles
Track your whole family in a single app, each with their own history and charts.
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PIN and biometric lock
Protect your data with a PIN or fingerprint. Nobody sees your entries but you.
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Local-only storage
Your weight history and measurements never leave your device. No cloud, no account.
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12 languages
Localized for a global audience across major languages.
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kg, lb, and stones
Switch between units at any time. The app converts your full history automatically.