
Free
About
Bang Bang is a dead-simple weight tracker built on one idea: the plan is the plan.
Set your start weight, goal weight, and goal date once. That draws a single straight line from where you are to where you're going — and it never moves, never re-adjusts, never grades on a curve.
Every day you log one number: the raw weigh-in off the scale. No smoothing, no moving averages, no trends. Bang Bang compares it to today's point on the line and gives you one blunt answer:
• At or under the line — "You're on track."
• Within half a pound over — "You're close. Keep it up!"
• Above that — "Eat less today."
On the chart, every weigh-in is a dot against the line. Day to day the dots scatter. Some land above, some below. That's normal. Keep answering the daily verdict and you'll watch the dots follow the straight line all the way down to your goal.
That's the whole system. Named for the bang-bang controller in engineering: two states, no dithering. Inspired by the Steve Ward Diet.
FEATURES
• Progress chart: the fixed plan line with your actual weigh-ins connected day to day
• Stats: pounds to go, days left, and the plan's rate in lb per week
• History: every weigh-in with its distance above or below the line
• Daily reminder: an optional notification at your chosen time quoting the day's target — skipped automatically once you've logged
• Private by design: everything lives on your phone. No account, no cloud, no tracking, no network at all
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What's New in Bang Bang Weight Tracker
1.0
August 6, 2026

