Your coach for
muscle growth.
Log your workouts. See exactly what's growing and what needs more work. Science-backed, zero guesswork.
Be the first to know when Duro launches. No spam.
See which muscles are growing.
Build or generate
your workout.
Log sets in
seconds.
And there's so much more.
Know when you're ready.
Recovery map shows which muscles are good to go before you walk in.
Watch yourself get stronger.
Strength trends per muscle. Spot plateaus before they stall you.
Find any exercise.
250+ exercises classified by muscle group. Add your own anytime.
Bring your workout history.
Import from Strong or Hevy, export anytime. Your data is always yours.
Built on research.
Volume thresholds from peer-reviewed hypertrophy studies. Not guesswork.
Your log stays local.
No account required. Core tracking works offline, with export anytime.
I spent 2 years and 300 workouts in another app before I realized I was under-training some muscles and over-training others, with no way to see it. So I built Duro: one screen that shows which muscles need more work and which ones you've already covered. I use it every session.
EddieQuestions
Can I import from Strong or Hevy?
Yes. Export a CSV, import into Duro, and years of training data show up with full muscle group breakdowns.
Does it work offline?
Gym basement, airplane mode, zero signal. Log your workout anywhere, no internet needed.
What about Android?
iOS only for now. We're focused on building the best hypertrophy tracker first.
How much does it cost?
$7.99/month or $29.99/year. Try it free first.
Are you training in the growth zone?
Join the waitlist. Be first when Duro launches on iOS.