Log your daily weight, see how you're trending week to week, and forecast where you'll be in three weeks — all stored privately on your device.
Get the AppWeighDay keeps it simple — no subscriptions, no ads, no accounts. Just your data, on your device.
One weight entry per day keeps your data clean and consistent. Quick to log, easy to review.
See your exact rate of gain or loss per week, calculated from your real logged data — not estimates.
Based on your current trend, WeighDay projects where you'll land in three weeks so you can stay on target.
Run separate sessions for a cut, a bulk, or a maintenance phase — each with its own history and metrics.
A clean chart of every entry in a session. Spot plateaus, drops, and outliers at a glance.
Back up your data or move it between devices anytime. Your history is always yours to keep.
Name it — "Summer Cut", "Bulk Phase", or whatever fits. Set a goal weight and your height.
Tap "Log" each morning after you weigh in. One entry per day keeps trends accurate.
WeighDay shows your rate per week and a 3-week forecast as soon as you have enough data.
End the session to lock it as a historical record, then start a new one whenever you're ready.