Features Built on Science

Every feature exists because research shows it matters for hypertrophy.

Hard Set Tracking

Log weight, reps, and RPE for every set. Focus on what drives growth.

Research shows sets at RPE 8-10 drive hypertrophy. Track the ones that count. Every set gets tagged with RPE/RIR so you know which sets are actually hard enough to stimulate adaptation.

  • Log weight in lbs or kg with precision tracking
  • Track RPE (6-10 scale) or RIR for every set
  • Filter your data to see only hard sets (RPE 8-10)
  • Mark warmup sets separately—they don't count toward volume
  • Quick-log from previous workout data to save time

Volume Per Muscle Group

See your weekly hard sets per muscle. Know if you're in the research-backed range.

10-20 hard sets per muscle per week is the research-backed target for hypertrophy. Too little and you're leaving gains on the table. Too much and you're accumulating fatigue faster than you can recover. Know where you stand.

  • Automatic weekly volume tracking per muscle group
  • Visual breakdown of hard sets by muscle
  • Compare current week to previous weeks
  • See volume distribution across primary and secondary movers
  • Identify muscles that need more or less work

Progressive Overload Tracking

Track PRs, volume trends, and estimated 1RM. See if you're actually progressing.

Progressive overload is the only way to grow. More weight, more reps, or more sets over time. If the numbers aren't going up, you're not progressing. Simple as that.

  • Automatic PR detection for every exercise
  • Volume trends over time (weekly, monthly, yearly)
  • Estimated 1RM calculations based on your working sets
  • Track progress on both compound and isolation lifts
  • See exactly when you hit new PRs and by how much

Works on Any Device

Progressive Web App that works offline. No app store required.

Log your sets at the gym on your phone, review your progress at home on your computer. Install it like a native app or use it in your browser. Works offline after first load, syncs when you're back online.

  • Responsive design optimized for phone, tablet, and desktop
  • Install as PWA on iOS, Android, Mac, Windows, Linux
  • Works offline—no connection needed during your workout
  • Syncs across all your devices automatically
  • No app store approval delays or forced updates

Rest Timer

Built-in timer between sets. Don't rush your recovery.

2-3 minutes between hard sets. Research shows adequate rest between sets maximizes performance on subsequent sets. Don't cut rest short and compromise your training quality.

  • Configurable rest duration per exercise
  • Audio and visual notification when rest is complete
  • Pause, extend, or skip timer as needed
  • Auto-start timer after logging a set
  • Background timer keeps running even if you switch apps

Ready to Track What Matters?

Start logging hard sets and progressive overload. Free forever.

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