Lift more. Track less.
Chalk is the workout tracker for people who train with a plan. Build templates, log every set, and let your %1RM do the math.
Everything you need in the gym. Nothing you don't.
Chalk does a few things and does them well, so you spend your time under the bar instead of in an app.
Workout templates
Build a routine once with warm-up and working sets, then run it every session without rebuilding anything.
Log every set
Tap through your session and record weight and reps as you go. No spreadsheets, no notes app.
Autofill from %1RM
Set a target percentage and Chalk fills in your working weight from your latest max effort.
Track your maxes
Record max efforts for any lift and watch your one-rep max climb over time.
Full history
Look back at every session to see what you lifted last time and beat it today.
Built for the gym
A fast, focused interface with big tap targets, made to use between sets with chalky hands.
From plan to PR in three steps
- 1
Build your template
Add exercises, then set your warm-up and working sets and a target %1RM.
- 2
Start a session
Open a template and Chalk pre-fills every set with the weight you should be lifting.
- 3
Log and progress
Record what you actually lifted. Your history and maxes update automatically.
Questions, answered
What is %1RM autofill?
Enter a one-rep max for a lift and a target percentage for your working sets. Chalk calculates the weight and fills it in for you.
Which devices does Chalk run on?
Chalk is a mobile app built with Expo for iOS and Android, so your training goes wherever you do.
Can I use my own exercises?
Yes. Name any exercise and add it to a template, with warm-up and working sets set up the way you train.
Is my data backed up?
Your workouts, sessions and max efforts are stored on your account, so they are safe when you switch phones.