Know Your Fatigue Before It Hits
FatigueSense uses AI and your smartwatch data to predict fatigue, pace your activity, and help you take back control of your energy.
What FatigueSense Does
Three core capabilities powered by a multi-agent AI system
Predicts Your Fatigue
Our AI analyses your sleep, heart rate variability, steps, and activity patterns to predict how you'll feel before you feel it.
Paces Your Day
Get a personalised activity budget each morning. Know when to push, when to rest, and avoid the boom-and-bust cycle.
Learns YOUR Patterns
FatigueSense builds a personal profile unique to you. Your baselines, your triggers, your thresholds and not population averages.
See It in Action
Real screens from the FatigueSense app
Dashboard
FS AI
Activity Pacing
AI Insights
Simulator
My Profile
Assessment
Notifications
How It Works
Four simple steps to take control of your fatigue
Sign Up & Get Ready
Join the waitlist or pre-save on your platform. When we launch, you'll be first in line.
Connect Your Smartwatch
Link your Apple Watch, Fitbit, Oura, Polar, Withings, Google Pixel Watch, Garmin, or other supported device. Data syncs automatically.
Start Your Day with a Check-In
Rate your fatigue and energy each morning. The AI uses this alongside your wearable data to learn your patterns.
Get Predictions & Pace
Within days, FatigueSense starts predicting your fatigue and giving you a personalised activity plan.
Who Is FatigueSense For?
Living with Chronic Fatigue
CFS/ME, MS, Long COVID, Fibromyalgia — finally understand your fatigue patterns. Know your limits before you crash.
Anyone Managing Energy
Whether it's work burnout or just wanting to feel better, FatigueSense helps you pace your life.
5
AI Agents working for you
15+
Health metrics tracked
5 days
To start personalising
3+ yrs
Of PhD research
Be Part of the Open Beta
Join early adopters helping shape the future of fatigue management. We'll send you updates, tips, and early access to new features. No spam, ever.
Works With Your Favourite Wearables
Connect the device you already own
| Device | iOS | Android | Connection |
|---|---|---|---|
| Apple Watch (Series 4+) | Apple HealthKit | ||
| Oura Ring | Via HealthKit | ||
| Polar (H10, Vantage, Ignite) | Via HealthKit | ||
| Withings (ScanWatch, Steel HR) | Via HealthKit | ||
| WHOOP (4.0, 5.0) | Via HealthKit | ||
| Fitbit (Sense, Versa, Charge, Inspire) | Fitbit Cloud API | ||
| Google Pixel Watch | Wear OS / Google Fit | ||
| Garmin (Venu, Forerunner, etc.) | Via HealthKit | ||
| Huawei Watch | Via HealthKit | ||
| Xiaomi / Amazfit | Via HealthKit |
iPhone — via Apple Health
Android
Frequently Asked Questions
FatigueSense is an AI-powered mobile app that predicts your fatigue levels using data from your smartwatch. It helps you pace your activities throughout the day to manage energy more effectively.
Yes. FatigueSense is free during the open beta period. We're focused on building the best fatigue management tool possible with your help.
On iPhone: Any watch that syncs to Apple Health — Apple Watch, Oura, Polar, Withings, WHOOP, Garmin, Huawei, Xiaomi, Fitbit, and more. On Android: Fitbit and Google Pixel Watch are currently supported.
Our system uses advanced machine learning models trained on real fatigue research data. It analyses your sleep quality, HRV, heart rate, steps, and activity to predict fatigue. After 14+ days of use, a personal model is trained specifically on YOUR data.
Yes. All data is encrypted in transit and at rest. We use Google Cloud infrastructure with MongoDB Atlas. Your health data is never sold or shared with third parties.
FatigueSense was developed through Newcastle University research focused on CFS/ME, but it works for anyone experiencing fatigue — including MS, Long COVID, fibromyalgia, cancer-related fatigue, or general energy management.
Steps, heart rate, HRV (heart rate variability), sleep stages (deep, REM, light), active minutes, and your self-reported fatigue/energy levels. On iOS, additional metrics like blood oxygen, respiratory rate, and body temperature are available.
The general model works from day one. After ~5 days, your personal baselines start forming. After 14+ days, a fully personalised model activates for maximum accuracy.
You can use the daily assessment and some features, but fatigue prediction requires wearable data (sleep, HRV, heart rate). A smartwatch is strongly recommended.
No. FatigueSense is a wellness and self-management tool, not a medical device. It does not diagnose, treat, or cure any condition. Always consult your healthcare provider for medical decisions.
Important Notice: FatigueSense is a wellness and self-management tool, not a medical device. It does not diagnose, treat, or cure any condition. Always consult with qualified healthcare providers regarding your medical conditions and treatment plans.