
Weight: Analytics & Prediction
Trends, records & yo-yo count
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Free
In-App Purchases
About
Your smart scale has been filling Apple Health with weigh-ins for years — and all you get is a wiggly line. WeighPredictor turns that history into answers.
SEE WHERE YOU STAND
• Current weight vs your personal reference point, all-time high, all-time low and ideal weight (BMI 22) — in kg and %
• Changes over 7 days, 14 days, 1 month, 2 months
• Averages per month and per year, with min–max ranges
• Month-over-month, quarter-over-quarter and year-over-year progression
• Records: lowest and highest ever, longest losing streak, volatility, BMI with every category explained
COUNT YOUR YO-YOS
WeighPredictor detects every cycle where you lost weight and gained it back — how much, and when. Set your own threshold.
PREDICT WHAT'S NEXT
Your weight forecast 7 days to 1 year ahead, plus the date you'd reach your goal weight — free, with the linear model. Pro adds two smarter models:
• Damped trend — knows every diet slows down
• Metabolic — simulates your energy balance day by day from your sex, height and age, converging to a realistic plateau
YOUR DATA IS YOURS
• Reads weight from Apple Health — works with any smart-scale app (Feelfit, Withings, Renpho…)
• Add, correct or delete any weigh-in; optionally sync edits back to Apple Health
• Export and import everything as JSON
• No account, no ads, no tracking, no servers. Everything stays on your iPhone.
The free version is generous and stays that way: the whole dashboard, every chart, yo-yo detection, BMI, the records editor, JSON backup, the full linear forecast and your goal date. One single purchase unlocks the two smart models. No subscription.
Not medical advice — just your data, finally legible.
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What's New in Weight
1.1
August 11, 2026
New in 1.1: • Explore tab — pick any weight and see how long you stayed there, every period you spent there, how many times you reached and left it, and how it compares to today. • Plan a target pace — set how much you want to lose per week and watch every projection update; the daily calorie balance now shows as a share of your maintenance. • Clearer, locale-aware numbers throughout, plus reliability fixes to the goal and forecast dates.
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In-App Purchases
$4.99
WeighPredictor Pro
All prediction models and goal dates.





