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
• 250+ 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
• Muscle recovery map: front and back views colored by how hard each muscle has been worked
• 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
• 250+ 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.