u/johnny1b1g

Hey everyone,

I was frustrated with fitness apps locking basic features behind expensive monthly subscriptions, so I decided to build my own. It’s called GymMe. I wanted something that works seamlessly between iPhone and Apple Watch, without needing to constantly take my phone out during a workout.

You can download it from the App Store here: GymMe . Please your comments in order to make it better :)

Below are the app’s features.

iPhone App

For the Advanced User

• Structured programs with templates exercise selection, sets, reps, tempo, rest seconds
• RPE tracking per set (Rate of Perceived Exertion)
• e1RM calculation (estimated 1 Rep Max) and progress chart
• Automatic weight/reps suggestions based on history (suggestion engine)
• Superset support with interleaved rest logic
• Tempo training (eccentric/concentric control)
• Unilateral exercises (L/R tracked separately)
• Personal Records (weight, reps, e1RM) with automatic detection
• Data export
• Metric / Imperial support

For the Beginner

• Free session mode without templates
• First steps onboarding
• Routine wizard (automatic program creation)
• Exercise difficulty levels (Beginner / Intermediate / Advanced)
• Visual library with muscle groups, equipment, videos/images
• Draft saving - if a workout is interrupted, it resumes where it left off
• Bilingual

General

• Live Activity on the lock screen during rest
• HealthKit integration (workout + calorie logging)
• Rest timer with beep and visual countdown

Apple Watch

For the Advanced User

• Log sets directly from the watch (weight / reps / RPE with Digital Crown)
• Weight increment with 3 levels (0.5 / 2.5 / 10 kg or 1 / 5 / 25 lbs)
• Real-time heart rate (BPM) displayed inline on screen
• Drop Sets / Rest-Pause: While logging a set, select the "Rest-Pause" technique. An automatic countdown timer will trigger to guide the user's recovery period.
• L/R Tracking, Use the L/R toggle for unilateral exercises to log each side independently.
• During a workout, tap on the exercise title while on the Rest Timer screen and select "Change Exercise". From the logged sets performed during the session, users can select and modify entries.
• Data Sync-Back, after finishing the workout on the Watch, the session is saved locally. It will automatically sync back to the iPhone's "History" tab once the devices are within range again.
• Change exercise mid-workout with a pencil picker
• Skip rest to return to the next set immediately
• Cancel / Save workout with confirmation from the watch — no iPhone needed

For the Beginner

• Automatic rest timer start as soon as a set is completed
• Audio + haptic notification at the start and end of rest
• "Next Set X" label during rest so the user knows what's coming
• Elapsed timer (● in progress + stopwatch) for a sense of progress

Flow & UX

• Start workout from the watch (workout list → exercise selection → workout in progress)
• Start workout from iPhone → automatically opens exercise picker on the watch
• kg/lbs sync from iPhone settings
• Full functionality without ever taking the iPhone out of your pocket

Have fun :)