Elara Health is a symptom diary and pacing tool for people living with ME/CFS, Long COVID, Post-COVID, and chronic fatigue.
The app helps you manage your energy more consciously (pacing), recognize overexertion earlier, and track symptoms, sleep, activity, and health data in one place - so you can identify patterns in your condition and make better use of your available energy.
WHY ELARA FOR FATIGUE AND PEM?
Many people living with ME/CFS or Long COVID experience post-exertional malaise (PEM) and the risk of crashes after physical, cognitive, or emotional exertion. Elara helps you visualize your health trends through clear daily, weekly, and monthly reports, showing how factors such as sleep, activity, stress, menstrual cycles, or medications may affect your well-being. This provides valuable support for pacing and self-management.
SMARTWATCHES & APPLE HEALTH INTEGRATION
Connect your smartwatch or fitness tracker through Apple Health and automatically import:
• Heart rate and resting heart rate
• HRV (heart rate variability) for stress monitoring
• Sleep stages and sleep quality
• Steps and daily activity
• Workouts and exercise sessions
• Blood pressure, body temperature, respiratory rate, and cycle data
Your health metrics are linked with your symptom diary, helping you identify relationships between physical measurements and how you feel - especially important for pacing with fatigue, ME/CFS, and Long COVID.
Elara can also synchronize menstrual cycle data, including flow intensity, basal body temperature, and automatic cycle phase detection, as hormonal changes may influence symptoms and energy levels.
FEATURES AT A GLANCE
• Symptom diary and symptom tracking
• Energy and activity journal for pacing and energy management
• Sleep stage analysis (REM, deep sleep, light sleep)
• Heart rate and HRV monitoring
• Health metrics tracking (blood pressure, temperature, respiratory rate)
• Health Connect integration for smartwatches and fitness trackers
• Medication scheduling and reminders
• Intelligent insights, trends, and pattern detection
• Emergency medical profile with essential health information
• Secure storage of laboratory results
• Nutrition and calorie tracking
• Guided meditations
Ideal for people living with ME/CFS, Long COVID, Post-COVID, fatigue, or chronic exhaustion who want to better understand their health and manage their energy more effectively.
Elara Health is not a medical device and does not diagnose, treat, cure, or prevent any disease.
I have tried nearly every health tracking app on the market and this is BY FAR the best. It allows you to track how much energy you feel you have, your activities and how taxing they are, AND your symptoms and how they might be impacting your overall energy. You can track baseline AND when you’re in a crash. All of this on top of tracking your vitals and factoring them into the overall energy assessment the app does for you to give you a better sense of whether you need to focus on recovering or if you’re at low risk of a crash.Also, the UI is gorgeous and the developers are continuing to improve the app all the time. I really cannot recommend this app enough for people with energy-limiting illnesses 💖
Developer Response
Thank you so much for this incredible feedback 🙏It really means a lot to hear that Elara stands out for you, especially after trying so many other apps. The way you describe tracking energy, symptoms, activities, baselines, and crashes – that’s exactly what we’re aiming for: helping you better understand your patterns and make more informed decisions around pacing and recovery.
You can now lock Elara with Face ID or your fingerprint. If you already track your nutrition elsewhere, Elara can pull the daily values straight from Apple Health or Health Connect — and when you log a meal manually, the foods you eat most often in that time slot now sit right at the top. The load hub explains itself: a new methodology view shows which axis contributes what to your value, and where the data comes from. You can also decide per tag category whether it counts as load or as rest.
Fixed: sleep time that Apple Health reports without a stage was previously discarded — it now counts again, and affected nights are recalculated automatically. If the app stayed open past midnight, it sometimes still showed the previous day. And HRV values from multiple sources are now merged correctly.
Version 3.73
The developer, MS Nucleus GmbH, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Health & Fitness
Location
Contact Info
User Content
Identifiers
Usage Data
Sensitive Info
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
MS Nucleus GmbH
Size
108.9 MB
Category
Health & Fitness
Compatibility
Requires iOS 16.0 or later.
iPhone Requires iOS 16.0 or later.
Mac Requires macOS 13.0 or later and a Mac with Apple M1 chip or later.
