light.fitness
Light · Fitness

A quiet log
for heavy days.

Track your sets the way you'd write them down — two taps a set, prefilled from last time, no phone in your face between sets.

Start tracking
Free · works offline · no ads · nothing to install from a store

Opens to your next set

No sign-in, no feed, no spinner. Start a routine and you're on set 1 with the weight you used last time.

Two taps a set

Weight and reps are already filled in. Tap ✓. Change the weight once and it carries to the rest of the exercise.

Reads like your notebook

History shows weights across a line — 35, 45, 45, 45 (hard), 40 — with reps only where they differ from the plan.

Rest timer that starts itself

Log a set, the clock starts. Elapsed workout time sits next to it. Nothing to press.

Works with no signal

Everything lives on your phone. Basement gym, airplane mode, dead spot — it opens instantly.

Your data is a file

Export everything as JSON any time. No account, no server, nothing to get locked into.

Put it on your home screen

  1. 1. Open light.fitness/app in Safari.
  2. 2. Tap ShareAdd to Home Screen.
  3. 3. Launch it like an app. Full screen, offline, straight to today.

Android: Chrome → menu → Add to Home screen. On a desktop it's just a website.

Rather write it down?

Print any routine as four pocket cards on one sheet — the paper log this app grew out of. Same names, same sets, a line to write on.

The paper version →

What we will never do

No ads. No selling or sharing your data. No streaks that shame you, no notifications that nag, no subscription traps. Your workouts never leave your phone unless you export them.

Privacy, in plain words →
Start tracking — it's free