The scale can’t tell muscle from fat.
Taper can.
A workout and body-composition tracker for lifters. Log your training, track weight and waist, and get a clear verdict on whether your bulk, cut, or recomp is actually working.
Free to start. Your data stays on your device.
Which Muscles Are Progressing?
And which aren’t.
A real ETA to your target
Set a weight or waist goal and Taper projects a date from your actual trend — noise-dampened, not a straight line off one bouncy weigh-in.
Log a set in a tap
A fast, keypad-driven logger with rest timers, supersets, drop sets, and warmups — built for the gym floor, not a spreadsheet.
Don’t unlock. Just lift.
Your rest timer, current set, and finish estimate live on the Lock Screen and Dynamic Island — control the whole session without opening the app.
Your progress on the Home Screen
A suite of widgets — verdict, streak, body map, latest measurements — so the numbers are one glance away.
Every muscle, graded and charted
Tap any muscle to see its rate, its status — Strong, On Target, Stalling — and a progress line built only from comparable sets. A fair-matchup engine never pits a fresh set against a fatigued one.
Only compares what’s comparable
Change your setup and Taper tracks each version separately, charting progress within each — so a swapped exercise or reordered day never looks like a regression.
Weight and waist, trended honestly
Weekly-averaged trend lines for body weight and waist with the real rate per week — noise-smoothed, so one bad weigh-in doesn’t swing the story.
Bring your history with you
Import your full workout and measurement history from Strong or Hevy — with per-import revert, so nothing is a one-way door.
Bring your history and see where you really stand.
Import from Strong or Hevy in a tap — with revert, so nothing is a one-way door.