Lean - Gym Workout Tracker

Track. Progress. Challenge. Science-based workout tracker (POF method) with friend competitions. Works 100% offline. Built for real gains.

Lean is a science-based workout tracker built around the POF method — the most proven training system for real muscle growth.

LOG WORKOUTS IN SECONDS Track sets, reps, and weight with minimal taps. Auto-fills your last session so you can focus on lifting, not typing.

POF PROGRESS TRACKING Each exercise shows a progress bar based on the POF method. See exactly how close you are to your target and when it's time to push harder.

880+ EXERCISES WITH VIDEOS Full exercise library with instructional videos. Search by muscle group, equipment, or name.

READY-MADE ROUTINES Browse complete, pre-built routines organized by muscle group. Add an entire workout in one tap. Designed with the POF method built in.

COMPETITIONS — CHALLENGE YOUR FRIENDS Create a challenge with custom rules: choose the scoring method (number of workouts, total volume, POF score, or sets), set start and end dates, and share an invite link. Friends join in one tap. Live leaderboard with real-time rankings and a top-3 podium. Activity feed shows what your friends are training.

SHARE YOUR PROGRESS Export a clean training summary card with your POF score and key stats. Share to Instagram, WhatsApp, or anywhere.

APPLE WATCH Control your workout from your wrist. Rest timer and haptic feedback on Watch.

100% OFFLINE No internet required. Everything works without a connection — your data stays on your device.