JET Mobile vs Heft

With the JET Boston App, you can start tracking your workouts and meals, measuring results, and achieving your fitness goals, all with the help of your personal trainer. - Access training plans and track workouts - Schedule workouts and stay committed by beating your personal bests - Track progress towards your goals - Manage your nutrition intake as prescribed by your coach - Set health and fitness goals - Message your coach in real-time - Track body measurements and take progress photos - Get push notification reminders for scheduled workouts and activities - Connect to wearable devices like Apple Watch (synced to Health app), Fitbit and Withings to sync body stats instantly Download the app today!

Everything lives on your phone. Your training history is private - it isn't uploaded anywhere, and it works exactly the same in the basement of a gym with no signal. LOG A SESSION • Weight and reps, or duration for timed work • Buttons to nudge weight and reps without opening the keyboard • Personal records marked automatically as you hit them • Rest timer with a default you set once, plus per-exercise overrides • Running volume total for each exercise as you go • Swipe between days to backfill a session you forgot SEE WHERE YOU'RE GOING • Chart estimated 1RM, total volume, or max weight for any exercise • One month through to all time • Drag across the chart to read any single point • Full history per exercise, with an estimated 1RM for every set MOVE FASTER • Save a session as a template and load it again next week • Search a built-in exercise library by muscle group • Add your own custom exercises • Pounds or kilos YOUR DATA STAYS YOURS • Export everything to CSV whenever you want • Import it back, or open it in a spreadsheet • Nothing leaves the device unless you send it somewhere NO CATCH There are no ads, no subscriptions, no locked features and no account to create. There's a tip jar in Settings if you'd like to buy me a coffee — it unlocks nothing, because there's nothing to unlock. Built by one person who wanted a lifting log that didn't steal my data.