Athlete locking out a heavy deadlift in a gold-lit gym, a glowing progress line rising behind him

Strength training tracker for iPhone & Apple Watch

Log your sets.
Earn your reps.

zRep makes logging between sets effortless, then turns every session into progress you can see: records, charts, badges, an AI coach and nutrition plans. Free for core training. No ads.

Download on the App Store
4.5 on the App Store
Free core strength log No ads AI coach & nutrition included Apple Watch remote Apple Health, only if you choose Templates & exercise library Badges for every milestone Community feed

Built for the gym floor

Log a set in seconds.

Weight, reps, RPE, notes and a rest timer, designed for quick logging between sets. Finished rows light up, so your progress is obvious mid-workout.

  1. StartJump into an empty session or launch a saved template.
  2. LogEnter weight, reps and RPE, with your previous performance right there.
  3. RestThe rest timer keeps you on pace between sets.
  4. FinishHistory, records and badges update the moment you're done.

How logging works →

zRep live session with two finished sets checked and a rest timer running
Rest 0:21

Progress you can read

Strength, on record.

History, records, charts, training volume and body stats. Every session adds another point to your curve.

Profile charts showing weekly training volume and body trends

Trends that tell the truth

Weekly volume, sessions per week, BMI and body fat over time.

Per-exercise charts with total volume and heaviest set

Every lift, charted

Per-exercise volume, heaviest sets, records and history in one place.

Badges screen with the next badge, Million Lifter, in progress

Milestones worth chasing

Badges for consistency, sessions, volume, variety, mastery and PRs.

Athlete smiling at her phone on a bench between sets

Community

Your crew cheers you on.

Follow athletes, see finished sessions, like and comment. Mutual follows unlock Compare PRs and nudges, so you stay accountable without a group chat.

Explore Community →

Apple Watch

Your wrist is
the remote.

Glance at the live session, start rest, pause or finish from Apple Watch. Your iPhone stays the source of truth.

Apple Watch logging →

Apple Health, optional

Connect health data
only when you choose.

With your permission, zRep writes finished strength workouts to Apple Health and reads supported metrics for richer session summaries. You stay in control from the app and iOS Settings.

  • Workouts
  • Heart rate
  • Active energy
  • Steps
  • Walking distance

Apple Health →   Privacy →

Loved by lifters

Athletes rate zRep on the App Store.

4.5
out of 5 · 10 ratings

Finally a lifting log that gets out of the way

Clean, fast, and exactly what I needed for tracking strength workouts. Templates save me so much time — I just load my push day and go. The “copy last session” button is a small thing but I use it every set. Highly recommend if you lift regularly.

Exactly what a workout tracker should be

One of the best trackers I’ve used. Big exercise library, dead simple to log sets, and the templates save me real time. The interface is clean and user friendly. No forced signup either. It simply does what I need and nothing I don’t. Highly recommended!

Best App

Even if you’re new to this workout world like me this app will help you build your plan in a couple of minutes. Amazing work.

zRep

Earn your reps.

Free on the App Store for iPhone and Apple Watch. Your next session is one tap away.