A workout tracker made for iPhone.
Rest timer in the Dynamic Island. Workout on the Lock Screen via Live Activities. Every set logs in one tap, signal or no signal.
No spam. Just one email when we launch.
Your workout app is slowing you down.
You came to train, not wrestle with your phone. Here's what every other app gets wrong.
Clunky logging
Most apps take 6+ taps to log a single set. By the time you're done, your rest is over.
No Lock Screen support
You unlock your phone, find the app, scroll to your exercise... every single set.
Useless without Wi-Fi
Gym basement or park, it's the same story: no signal, app freezes, workout gone.
Feature bloat
Social feeds, meal plans, meditation guides. You just want to bench press and go home.
Nuklex fixes all of this. Zero compromises.
Build. Log. Track. Repeat.
Three steps to a workout that actually moves the needle.
Build a workout in under a minute
800+ exercises, drag-and-drop ordering, warm-up / main / cool-down blocks, and templates you can reuse on the fly.
Log every set without unlocking your phone
Live Activities on the Lock Screen. Rest timer in the Dynamic Island. Weights auto-fill from last session. Full superset support.
See if you got stronger this month
PR tracking, volume charts, streak counters, muscle heatmaps. Export it all as CSV if you want to slice the data yourself.
Share Nuklex. Earn real rewards.
Every friend you refer moves you up the waitlist. Hit a tier and we ship you free Nuklex merch.
Join the waitlist
Sign up with your email
Share your link
Every friend who joins counts as a referral
Unlock rewards
Hit a tier, we ship your merch free
Stickers Pack
A pack of premium Nuklex stickers to rep your gym bag.
Nuklex T-Shirt
Soft-cotton tee with the Nuklex logo. Looks good, lifts better.
Nuklex Hoodie
Heavyweight hoodie for warm-ups and cool-downs. Your new gym staple.
Full Bundle + Pro Lifetime
Stickers, tee, hoodie, and Nuklex Pro forever. The ultimate reward.
May 1, 2026. Be first in line.
Only 500 founding member spots. Once they're gone, they're gone.
No spam. Just one email when we launch.
Frequently asked questions
If you have anything else you want to ask, reach out to us.