# MotionSync Health

> MotionSync is an AI health coach for your wearable data. It connects Apple Health, Garmin, Oura, Fitbit, and Google Fit into one dashboard and turns the numbers into plain-English insights, a daily health score, and trend analysis. Health data is encrypted in transit and at rest and never sold. MotionSync is privacy-first health AI for your wearable data. We never sell your data. We never use your health data for advertising. You can delete your account and your data at any time. US-only for now, by design, while we get the legal foundation right. Your data is processed by an AI model running inside a hardware-secured enclave. Our AI provider cannot see your prompts or your results. The AI provider never receives your name, email, or account identifiers.

Pricing: free 14-day trial, then free or Pro tier; pricing not final during beta.

Available on iOS. US-only during beta.

## How MotionSync differs from a general chatbot

Most health AI is a general chatbot: you paste your numbers in, the company stores the conversation, and it may train on it. MotionSync is purpose-built for health data, connects directly to your wearables, and is designed so your data is used to generate your insights and nothing else.

## Core Pages

- [Homepage](https://motionsynchealth.com/): Landing page with product overview, features, and how MotionSync works
- [About Us](https://motionsynchealth.com/about): Company mission, values (Clarity, Confidence, Control), and team information
- [FAQ](https://motionsynchealth.com/faq): Frequently asked questions about privacy, device compatibility, AI features, pricing, and getting started
- [Contact & Support](https://motionsynchealth.com/contact): Support channels and contact information
- [API Documentation](https://motionsynchealth.com/api-docs): RESTful API docs for mobile apps and third-party integrations

## The Health Index (Blog)

- [Blog index](https://motionsynchealth.com/blog): All articles on wearable data, recovery, sleep, and heart health
- [Full article text](https://motionsynchealth.com/llms-full.txt): Complete markdown body of every published article

### Activity

- [Cardio vs. Strength Training: What Your Data Says You Actually Need](https://motionsynchealth.com/blog/cardio-vs-strength-training): Should you run or lift? Research says both. Here's how cardio and strength training affect your health metrics differently, and how to balance them.

### AI & Health

- [What Happens to Your Health Data If a Wearable Company Goes Bankrupt?](https://motionsynchealth.com/blog/what-happens-to-health-data-if-company-goes-bankrupt): Your health data isn't automatically deleted or protected if a wearable or health app company folds. Here is what bankruptcy law actually allows.
- [Why Do My HRV and Resting Heart Rate Change Across My Cycle?](https://motionsynchealth.com/blog/menstrual-cycle-hrv-resting-heart-rate): HRV tends to dip and resting heart rate tends to rise in the luteal phase. Here is what the research says and how to read your own wearable data.
- [Which Wearable Metrics Are Measured, and Which Are Estimated?](https://motionsynchealth.com/blog/measured-vs-estimated-wearable-metrics): Heart rate is measured. Calories, VO2 max, sleep stages, and stress scores are estimated. Which wearable numbers are raw sensor data, and which are algorithm.
- [Does HIPAA Cover My Fitness Tracker or Health App?](https://motionsynchealth.com/blog/does-hipaa-cover-my-fitness-tracker): Most fitness trackers and health apps are not covered by HIPAA. Here is which law actually applies to your wearable data, and what that means for you.
- [Why Your Wearable Data Means Nothing Without Context](https://motionsynchealth.com/blog/wearable-data-needs-context): Raw wearable numbers like HRV or a readiness score are meaningless alone. Learn why context, not more data, is what actually makes tracking useful.
- [Is It Safe to Connect Your Wearables to One Health App?](https://motionsynchealth.com/blog/is-it-safe-to-connect-wearables-to-health-app): What actually happens when you link Apple Watch, Oura, or Garmin to a third-party app, and the questions worth asking before you do.

### Comparisons

- [Why Apple Health Falls Short for Serious Trackers](https://motionsynchealth.com/blog/why-apple-health-falls-short): Apple Health stores your data but can't explain it. Here's what serious health trackers actually need — and why Apple agrees.
- [MotionSync vs ChatGPT Health: Which AI Health Tool Is Right for You?](https://motionsynchealth.com/blog/motionsync-vs-chatgpt-health): An honest comparison of MotionSync and ChatGPT Health — features, wearable support, data accuracy, and which tool actually helps you improve.

### Health Data

- [Why Does My Stress Score Say I'm Stressed When I Don't Feel It?](https://motionsynchealth.com/blog/why-stress-score-doesnt-match-how-you-feel): Your wearable says high stress but you feel calm, or the reverse. Here's what the score is really measuring and why it often disagrees with how you feel.
- [Running in Hot Weather: What Your Data Shows](https://motionsynchealth.com/blog/running-in-hot-weather): Heat can add 20-30 bpm to your run at the same pace. Here is what your wearable shows and how to train in it safely.
- [Why Is My HRV Low? Causes and What It Means](https://motionsynchealth.com/blog/why-is-my-hrv-low): A low HRV reading is a signal, not a verdict. Here are the real causes, when to worry, and what your data is telling you.
- [How Dehydration Affects Your HRV and Recovery](https://motionsynchealth.com/blog/how-dehydration-affects-hrv-and-recovery): Just 2% dehydration drops HRV by 15-20% and raises resting heart rate 5-10 bpm. Here is what your wearable actually shows.
- [How Travel and Jet Lag Affect Your Recovery Data](https://motionsynchealth.com/blog/how-travel-affects-recovery-and-health-data): Crossing time zones drops HRV by 20-30% for 4-7 days. Here is what your wearable shows during travel and how to recover faster.
- [Why Does My Heart Rate Spike While Sleeping?](https://motionsynchealth.com/blog/heart-rate-spikes-during-sleep): You checked your wearable and saw your heart rate jumped to 120 BPM at 3 AM. Learn the 8 most common causes of nighttime heart rate spikes and when to worry.
- [How to Tell If You Are Overtraining: 7 Signs in Your Wearable Data](https://motionsynchealth.com/blog/signs-of-overtraining-wearable-data): Your body sends warning signs before overtraining sets in. Learn the 7 data patterns in your HRV, heart rate, and sleep that say back off.
- [Body Composition: Why Your Scale Is Missing the Picture](https://motionsynchealth.com/blog/body-composition-beyond-the-scale): Weight alone tells you almost nothing. Learn what body composition measures, how it connects to your wearable data, and why muscle mass matters.
- [How AI and Wearables Are Filling the Gaps Your Doctor Cannot](https://motionsynchealth.com/blog/how-ai-wearables-support-health-goals): Your doctor sees you once a year. Your wearable sees you every day. Learn how AI and continuous tracking are reshaping preventative care.
- [How Stress Affects Your Heart Rate, HRV, and Sleep Data](https://motionsynchealth.com/blog/how-stress-affects-heart-rate-hrv-sleep): Stress leaves a measurable signature in your wearable data. Learn what the stress-sleep feedback loop looks like and how to break it.
- [Why Respiratory Rate Matters More Than You Think](https://motionsynchealth.com/blog/why-respiratory-rate-matters): Your wearable tracks breathing rate every night. Learn why respiratory rate is the most stable and clinically useful metric you own.
- [Why Am I Tired After 8 Hours of Sleep? Your Wearable Knows](https://motionsynchealth.com/blog/why-am-i-tired-after-8-hours-sleep): You slept 8 hours but feel exhausted. Learn why sleep duration and quality differ, and what your wearable data means.
- [Why Garmin and Oura Show Different HRV (Which One to Trust)](https://motionsynchealth.com/blog/why-wearables-show-different-hrv-numbers): Garmin says 45ms, Oura says 32ms. Learn why wearables report different HRV values and which number matters.
- [Blood Oxygen Levels: What SpO2 Means and When to Pay Attention](https://motionsynchealth.com/blog/blood-oxygen-levels-explained): Your wearable tracks blood oxygen while you sleep. Learn what SpO2 is, normal ranges, what causes it to drop, and how accurate your device really is.
- [Your Circadian Rhythm Explained: Why Timing Matters More Than Duration](https://motionsynchealth.com/blog/circadian-rhythm-explained): Your body runs on a 24-hour clock that controls sleep, hormones, and performance. Here's how it works and what happens when it breaks.
- [How Alcohol Affects Your Sleep, HRV, and Recovery](https://motionsynchealth.com/blog/how-alcohol-affects-sleep-hrv-recovery): Two drinks drop your HRV by 28-33% and cut REM sleep by 59%. Here's what alcohol actually does to your recovery data.
- [Inflammation and Recovery: What Your Wearable Is Already Telling You](https://motionsynchealth.com/blog/inflammation-and-recovery): Acute vs chronic inflammation explained. Learn how your wearable detects inflammatory signals through HRV, resting heart rate, and temperature changes.
- [VO2 Max Explained: Why It Matters for Aerobic Fitness](https://motionsynchealth.com/blog/vo2-max-explained): VO2 max explained in plain English. Why it predicts longevity better than almost any other metric, what the ranges mean, and how to improve yours.
- [Heart Rate Zones Explained: A Complete Guide](https://motionsynchealth.com/blog/heart-rate-zones-explained): Heart rate zones explained in plain English. Learn what each zone does, how to calculate yours, and why your wearable might have it wrong.
- [What Is HRV? Heart Rate Variability Explained](https://motionsynchealth.com/blog/what-is-hrv): HRV explained in plain English. Learn what heart rate variability is, normal ranges by age, and how to improve it.
- [Body Temperature Variations: What They Mean](https://motionsynchealth.com/blog/body-temperature-what-it-means): Your body temperature isn't 98.6°F. Learn what temp variations reveal about sleep, stress, recovery, and illness.
- [Calorie Tracking: What Your Wearable Gets Wrong](https://motionsynchealth.com/blog/calorie-tracking-what-your-wearable-gets-wrong): Your fitness tracker's calorie count is off by up to 93%. Here's what actually matters and how to use the data.
- [Building a Health Routine Based on Your Data](https://motionsynchealth.com/blog/building-health-routine-from-data): Turn your wearable data into daily habits that actually stick. A practical guide to data-driven health routines.
- [How Many Steps a Day Do You Actually Need?](https://motionsynchealth.com/blog/step-count-and-longevity): 10,000 steps came from a pedometer ad, not science. Here's what 350,000+ study participants reveal about steps and longevity.
- [How to Improve Your HRV Naturally](https://motionsynchealth.com/blog/how-to-improve-hrv-naturally): Evidence-based ways to raise your heart rate variability. Breathing, sleep, exercise, and more — backed by research.
- [Sleep Stages Explained: What Your Wearable Tracks](https://motionsynchealth.com/blog/sleep-stages-explained): Your wearable tracks light, deep, and REM sleep every night. Here's what each stage does, what's normal, and what to watch for.
- [What Your Recovery Score Actually Means](https://motionsynchealth.com/blog/what-your-recovery-score-means): Your wearable gives you a recovery score every morning. Here's what it measures, why devices disagree, and how to use it.
- [How to Read Your Body's Stress Signals](https://motionsynchealth.com/blog/reading-your-bodys-stress-signals): Your body sends stress warnings before you feel them. Learn how HRV, heart rate, and sleep patterns reveal hidden stress.
- [Resting Heart Rate: What's Normal and What's Not](https://motionsynchealth.com/blog/resting-heart-rate-whats-normal): Learn what your resting heart rate means, what's normal by age and fitness level, and how to lower it. Your wearable tracks it — here's how to use it.
- [5 Signs You Have Too Many Health Apps](https://motionsynchealth.com/blog/too-many-health-apps): App fatigue is real. Here are 5 signs your health apps are hurting more than helping — and what to do about it.

### Product Updates

- [Meet Your AI Health Coach: How MotionSync Replaces 5 Apps](https://motionsynchealth.com/blog/meet-your-ai-health-coach): Discover how MotionSync consolidates sleep tracking, heart rate monitoring, activity logging, and AI health insights into one simple platform.

### Sleep

- [Sleep Debt Is Real. Can You Actually Catch Up on Weekends?](https://motionsynchealth.com/blog/sleep-debt-can-you-catch-up-on-weekends): Short yourself sleep all week, crash on Saturday — are you whole? The research is more nuanced. What your wearable reveals about sleep debt.
- [Caffeine and Your Recovery Data: How Long That Coffee Actually Lasts](https://motionsynchealth.com/blog/caffeine-and-your-recovery-data): That 3 PM coffee is still affecting you at midnight. What caffeine does to your sleep, HRV, and resting heart rate — and what your wearable shows.

### Wearable Tech

- [What Happens to Your Health Data When You Switch Wearables?](https://motionsynchealth.com/blog/switching-wearables-what-happens-to-your-data): Upgrading from Fitbit to Garmin or Apple Watch to Oura? Here is what actually transfers, what you lose, and how to protect your historical trends.
- [Best Wearable for Sleep Tracking in 2026](https://motionsynchealth.com/blog/best-wearable-for-sleep-tracking-2026): We compared Oura, WHOOP, Apple Watch, Garmin, and Fitbit against clinical sleep studies. Here's which tracks sleep most accurately.

### Wellness

- [How to Improve Deep Sleep: 8 Methods Backed by Research](https://motionsynchealth.com/blog/how-to-improve-deep-sleep): Not getting enough deep sleep? These 8 science-backed methods can measurably increase deep sleep, with sources and what to track on your wearable.
- [When to Push Hard vs When to Rest (By the Data)](https://motionsynchealth.com/blog/when-to-push-hard-vs-rest): Your wearable knows when you're ready to train and when you need recovery. Here's how to read the signals.
- [Morning vs Evening Workouts: What Your Data Says](https://motionsynchealth.com/blog/morning-vs-evening-workouts): Science says evening workouts build more power. Data says morning workouts stick. Here's how to use your metrics to decide.

### Wellness Tips

- [The Complete Guide to Heart Rate Variability (HRV)](https://motionsynchealth.com/blog/understanding-heart-rate-variability): A practical guide to using your HRV number: what changes it day to day, how to read a drop, and how to decide what to do about it.

## Legal

- [Privacy Policy](https://motionsynchealth.com/privacy): How MotionSync collects, uses, and protects personal and health data (encrypted, never sold, per-type consent)
- [Cookie Policy](https://motionsynchealth.com/cookies): Cookie and tracking technology usage
- [Terms of Service](https://motionsynchealth.com/terms): Terms and conditions for using MotionSync Health

## Apps

- [MotionSync for iOS](https://apps.apple.com/app/motionsync/id6754881620): Available on the App Store

## Optional

- [Sitemap](https://motionsynchealth.com/sitemap.xml): XML sitemap for all public pages
- [robots.txt](https://motionsynchealth.com/robots.txt): Crawler access rules