Setting Up Apple Health Sync in RepTrack

Apple Health is the central hub for health and fitness data on iOS. It collects data from your Apple Watch, other fitness apps, medical devices, and manual entries into a single unified store. RepTrack connects to Apple Health through HealthKit, Apple's framework for reading and writing health data. This connection allows RepTrack to pull in data it does not collect on its own — heart rate, step counts, active calories, menstrual cycle data — and use that data to enhance your training experience and AI-powered recommendations.

This guide covers what syncs, how to set it up, and how the synced data actually gets used inside RepTrack.

What Data Syncs

RepTrack's Apple Health integration is a two-way connection. Here is what moves in each direction:

Data RepTrack Reads from Apple Health

| Data Type | Source Examples | How RepTrack Uses It | |---|---|---| | Heart Rate | Apple Watch, chest strap monitors | Training intensity analysis, recovery insights | | Steps | iPhone, Apple Watch | Activity level estimation, TDEE refinement | | Active Energy Burned | Apple Watch, other fitness apps | Calorie expenditure cross-reference | | Body Weight | Smart scales, manual entries | Profile updates, metabolic calculations | | Body Fat Percentage | Smart scales, manual entries | Body composition tracking, metabolic dashboard | | Menstrual Cycle | Cycle tracking apps, manual entries | Cycle-adaptive training recommendations | | Height | Manual entry | BMI and metabolic calculations |

Data RepTrack Writes to Apple Health

| Data Type | What Gets Written | |---|---| | Workouts | Exercise type, duration, calories burned for each completed session | | Body Weight | Weight entries logged in RepTrack |

This means your RepTrack workouts appear in Apple Health's workout history and in your Activity rings, giving you credit for your training sessions across the entire Apple ecosystem.

Setting Up the Connection

Initial Setup

1. Open RepTrack and navigate to Settings
2. Find the Apple Health section
3. Tap Connect Apple Health
4. iOS presents the standard HealthKit permissions sheet

Granting Permissions

The permissions sheet shows each data type RepTrack is requesting access to, separated into Read and Write categories. You have granular control — you can approve or deny each data type individually.

For the full RepTrack experience, enable all requested permissions:

1. Turn on all Read permissions — this allows RepTrack to access your health data for enhanced features
2. Turn on all Write permissions — this allows RepTrack to write your workout data back to Apple Health
3. Tap Allow to confirm

If you only want partial integration — for example, you want RepTrack to read your steps but not your menstrual cycle data — that is fine. Enable only what you are comfortable sharing. RepTrack adapts to whatever data is available and does not require all permissions to function.

Verifying the Connection

After granting permissions, return to RepTrack's Settings screen. The Apple Health section should now show a Connected status. You can tap into it to see which data types are actively syncing.

If the status does not update immediately, close and reopen RepTrack. The HealthKit connection sometimes takes a moment to register after the initial permission grant.

How Synced Data Enhances RepTrack

The Apple Health integration is not just about displaying numbers from other sources. RepTrack actively uses synced data to improve its features.

Activity Level and TDEE

Your step count and active energy data help RepTrack estimate your true activity level more accurately than a self-reported selection alone. If you set your activity level to "Moderately Active" but your step data consistently shows 3,000 steps per day, RepTrack can flag the mismatch. Conversely, if you are hitting 12,000 steps daily on top of your training, your actual TDEE may be higher than a generic multiplier suggests.

Heart Rate and Training Intensity

If you wear an Apple Watch during workouts, heart rate data adds a physiological layer to your training logs. RepTrack can correlate your logged RPE with actual heart rate data, giving you a more complete picture of training intensity. Over time, this helps you calibrate your RPE ratings — if you consistently rate sets as RPE 7 but your heart rate tells a different story, you may be underestimating your effort.

Menstrual Cycle Integration

For users who track their menstrual cycle through Apple Health (or any app that writes to HealthKit), RepTrack reads this data to power its cycle-adaptive training features. Instead of manually entering cycle data in RepTrack, the sync pulls it automatically. Your current cycle phase influences AI training recommendations — intensity, volume, and exercise selection can all adapt to where you are in your cycle.

Body Composition Updates

If you use a smart scale that writes to Apple Health (Withings, Renpho, Eufy, and others), your weight and body fat readings sync to RepTrack automatically. This keeps your profile current without manual entry, which means your metabolic dashboard — BMR, TDEE, macro targets, hydration — recalculates with every new reading.

What Happens During a Workout

When you start a live workout in RepTrack with Apple Health connected:

1. RepTrack begins a HealthKit workout session in the background
2. If you are wearing an Apple Watch, heart rate data streams in real time
3. Active calories are tracked throughout the session
4. When you finish the workout, RepTrack writes the completed workout to Apple Health
5. The workout appears in your Apple Health workout history and contributes to your Activity rings

This means your strength training sessions get proper credit in Apple's Activity system. Move ring, Exercise ring — your RepTrack workouts contribute to both.

Troubleshooting Sync Issues

Data Not Appearing in RepTrack

If Apple Health data is not showing up in RepTrack, check these items in order:

1. Verify permissions. Open iOS Settings, go to Privacy and Security, then Health, then RepTrack. Confirm that the relevant data types have Read access enabled.
2. Check the data source. Open the Apple Health app and verify that the data you expect actually exists there. If your smart scale did not sync to Apple Health, RepTrack cannot read it.
3. Force a refresh. Close RepTrack completely (swipe up from the app switcher) and reopen it. HealthKit data is queried on app launch.
4. Check for date range issues. RepTrack reads recent data. If the data you are looking for is from months ago, it may not appear in the current view.

Workouts Not Appearing in Apple Health

If your completed RepTrack workouts are not showing in Apple Health:

1. Verify Write permissions. In iOS Settings, go to Privacy and Security, then Health, then RepTrack. Confirm that Workouts have Write access enabled.
2. Complete the workout properly. Tap Finish Workout in RepTrack. If you force-close the app mid-workout, the workout may not be written to HealthKit.
3. Check Apple Health. Open the Health app, go to Browse, then Activity, then Workouts. RepTrack workouts appear as "Strength Training" or the relevant workout type.

Duplicate Data

If you see duplicate entries — for example, the same workout appearing twice in Apple Health — check whether multiple apps are writing the same data type. Apple Health has a Data Sources & Access section for each data type where you can prioritize which app's data takes precedence.

Cycle Data Not Syncing

If menstrual cycle data is not appearing in RepTrack's cycle features:

1. Confirm that the source app (Apple Health Cycle Tracking, Clue, Flo, etc.) is actually writing to HealthKit
2. Check that RepTrack has Read permission for Menstrual Cycle data
3. Verify that you have recent cycle data logged — RepTrack needs at least one cycle's worth of data to make adaptive recommendations

Privacy and Data Handling

Apple Health data is governed by Apple's strict HealthKit privacy policies:

• Data stays on device. HealthKit data accessed by RepTrack is read locally. It is not uploaded to any server.
• Encrypted in transit. If you use iCloud backup, HealthKit data is encrypted end-to-end.
• User-controlled permissions. You can revoke RepTrack's access to any data type at any time through iOS Settings. Revoking access does not delete data that RepTrack has already incorporated into your profile — it simply stops future syncing.
• No third-party sharing. RepTrack does not share your Apple Health data with any third party, advertiser, or analytics service.

Recommended Connected Devices

While RepTrack works with any device that writes to Apple Health, these categories of devices provide the most useful data:

• Apple Watch — heart rate during workouts, steps, active calories, stand hours. The single most impactful companion device.
• Smart scale — automatic body weight and body fat percentage updates. Eliminates manual profile updates.
• Heart rate chest strap — more accurate heart rate than wrist-based monitors during high-intensity training. Writes to Apple Health through the manufacturer's app.

You do not need any of these devices to use RepTrack effectively. But if you already own them, connecting them through Apple Health makes every RepTrack feature work better.