GymJC – Workout & Interval Log

Workout Tracker, Gym Log, Rep Counter & HIIT Timer – Log Reps, Sets & Workouts for Free

GymJC is the workout tracker and gym log that keeps it simple. A fast rep counter, HIIT timer, Tabata timer, and interval timer — all in one app. Built for strength training, bodybuilding, EMOM, AMRAP, and cardio. Log workouts, track progress with charts, and sync with Apple Health.

WORKOUT TRACKING MADE SIMPLE

  • Log workouts quickly with an intuitive, distraction-free interface
  • 235+ exercises with professional video demos
  • Create custom exercises or variations from existing ones
  • Track sets, reps, weight, bodyweight, time, distance, duration
  • Add notes and location to each session

ADVANCED TRAINING TOOLS

  • Interval timers: HIIT, Tabata, EMOM & AMRAP with voice cues, custom sounds & rep tracking — use built-in presets or create your own
  • Supersets & tri-sets
  • RPE (Rate of Perceived Exertion) tracking
  • Intelligent rest timer and workout timer with auto-start
  • 1RM Calculator with rep range estimates
  • Plate Calculator with visual barbell diagram
  • Live Activities on Lock Screen & Dynamic Island
  • Built-in programs: StrongLifts 5×5, PPL, Upper/Lower, Arnold Split & more
  • Create workout templates from scratch or save any workout as a reusable template

YOUR PROGRESS, VISUALIZED

  • See your improvement with beautiful charts and detailed statistics
  • Interactive volume, duration, and frequency charts
  • Workout streak tracking
  • Muscle group distribution across 13 groups
  • Weekly, monthly, and yearly activity calendars
  • Progress views for week, month, year, or all time
  • Automatic personal record tracking
  • Share beautiful workout summary cards on social media — even overlay your stats on a gym selfie

BODY TRANSFORMATION TRACKING

  • Progress photos: capture Front, Side, and Back poses
  • Ghost Mode: align new photos perfectly with a transparent overlay of your previous shot
  • Compare and share your transformation with side-by-side photo comparisons
  • Interactive body diagram for quick measurement logging
  • Multiple measurement points (weight, chest, waist, arms, legs, and more)
  • BMI calculation with health indicators
  • Visual progress charts for every measurement

APPLE HEALTH INTEGRATION

  • Sync completed workouts, weight, and height with Apple Health
  • Review your heart rate chart after each session
  • Import weight and height from Apple Health

PRIVACY-FIRST

  • Your data stays yours—always
  • All data stored locally or in your iCloud account
  • No third-party servers or data mining
  • Full backup & restore

HOME SCREEN WIDGETS

  • Stay motivated with widgets showing weekly workouts, volume, duration, and your current streak

FREE TO USE

  • Unlimited workout logging
  • 235+ exercise library with videos
  • Custom exercises & variations
  • Supersets & tri-sets
  • Built-in programs & templates
  • 1RM & Plate calculators
  • RPE tracking
  • Weekly stats & charts
  • Body measurements & progress photos (3-month history)
  • Personal records (recent)
  • iCloud sync
  • Interval timers (HIIT, Tabata, EMOM, AMRAP)
  • Rest timer + Live Activities
  • Apple Health sync
  • Backup & restore

GO PRO FOR MORE

  • Full stats: month, year, all time
  • Add up to 10 exercises per interval timer preset
  • Unlimited measurement & progress photo history
  • Complete personal records history
  • Backup import/export for full data portability

Perfect for powerlifting, bodybuilding, CrossFit, calisthenics, or general fitness — GymJC adapts to any training style.

Download GymJC and train your way to your strongest self.