Track Your Energy. Find Out Why You're Tired.
You're tired but you don't know why. Is it sleep? Diet? Stress? A supplement you're taking? Your exercise routine — or lack of one? Stop guessing and start tracking. ReactLog finds the patterns your brain can't see.
You've tried everything and you're still exhausted
Persistent fatigue affects 1 in 3 adults worldwide, yet "why am I always tired" remains one of the most searched health questions on Google. The reason most people stay stuck is simple: they try solutions randomly instead of tracking systematically.
You've probably experimented with solutions one at a time. More sleep. Better diet. New supplements. More exercise. But without systematic tracking, you never discover what actually correlates with your higher energy levels.
Here's the truth: energy is affected by dozens of variables simultaneously. Sleep duration, sleep consistency, food choices, blood sugar timing, caffeine consumption, hydration, exercise type and timing, stress levels, supplements, medications, screen time exposure, social activity, weather, and sunlight all interact in complex ways. Your brain cannot process all these correlations. But data can.
The solution is data. Track what you take alongside how you feel. After 3-4 weeks, patterns emerge. You discover which supplements correlate with better sleep, more stable energy, clearer thinking, or fewer symptoms. You stop wasting money on supplements that don't work for you, and you double down on the ones that do.
How It Works in 3 Steps
Transform energy guessing into evidence-based decisions.
Rate Your Energy Daily
Check in with your energy level as often as possible—morning, midday, afternoon, and evening. Each rating takes 10 seconds on a simple 1-10 slider. The more frequently you log, the more precisely ReactLog can map your energy curves and connect dips to specific causes.
Log Your Inputs
Log the inputs that might affect your energy: sleep, food, supplements, exercise, coffee, stress, time outdoors. These inputs plus your frequent energy check-ins are what power ReactLog's correlation engine. You don't need to log everything every time—even partial data builds the picture.
Discover Your Equation
After 2-3 weeks of consistent tracking, ReactLog reveals your personal energy equation. Which specific factors most strongly correlate with your energy? What gives you energy? What drains you?
Track Everything That Matters
ReactLog adapts to your unique health journey. Track any combination of these:
Energy Levels
Daily energy ratings, morning alertness, afternoon crashes, and evening fatigue
Sleep Quality
Sleep duration, consistency, quality, wake-ups, and morning grogginess
Brain Fog & Focus
Mental clarity, focus duration, distractibility, and cognitive performance
Exercise & Activity
Workout type, duration, intensity, and physical activity level
Symptoms & Health
Any symptoms you're tracking: headaches, anxiety, pain, digestion, skin, etc.
Food & Diet
Meals eaten, nutrients, and dietary patterns
Supplements & Meds
Supplements taken, medications, dosage, and timing
Custom Tracking
Create unlimited custom metrics unique to your health goals
Your Energy Data Stays on Your Phone
Why privacy matters for energy tracking.
Your energy levels and health data reveal things about you that are deeply personal: health conditions you're managing, lifestyle choices, and vulnerabilities. You don't want that data on someone else's server.
Traditional apps sell your health data to data brokers, insurance companies, and advertisers. ReactLog takes a fundamentally different approach:
- No backend servers — Your data lives on your device only. Period.
- No analytics SDKs — We don't send telemetry about your usage patterns.
- No data collection — We have nothing to collect. No servers means no data pipeline.
- No account required — You don't need to create a login. No username, no email, nothing that identifies you.
- Face ID/Touch ID lock — Your energy data is biometrically protected on your phone.
We charge for the app instead of charging you with your privacy. It's a sustainable business model that aligns our interests with yours. We want you to use ReactLog, but we don't want your data.
Frequently Asked Questions
Why am I always tired?
Persistent fatigue has many causes: poor sleep quality, sleep inconsistency, blood sugar swings, dehydration, vitamin deficiencies, stress, sedentary lifestyle, medication side effects, hormonal imbalances, or underlying health conditions. The key is systematic tracking. Most people try one solution at a time, never discovering what actually correlates with higher energy in their specific situation.
How do I track my energy levels?
Rate your energy 1-3 times daily on a simple scale (1-10 works well). Morning, afternoon, and evening captures daily variation. Each rating takes about 10 seconds. Simultaneously, log the factors that might influence your energy: hours slept, quality of sleep, meals eaten, supplements taken, exercise completed, caffeine consumed, stress level, time outdoors. You don't need perfect logging. Consistent tracking of a few key factors reveals patterns quickly.
Can tracking energy actually help?
Yes. Data shows that most people discover 2-3 specific factors that significantly affect their energy once they track consistently. Someone discovers that morning light exposure raises afternoon energy by 20%. Another finds that magnesium at specific times eliminates afternoon crashes. A third discovers that sleep consistency matters far more than sleep duration for their energy levels. These discoveries can't happen without systematic tracking. Your brain detects obvious patterns, but misses subtle correlations and delayed effects.
What's the best time to track energy?
Consistency matters more than frequency or specific times. Morning, mid-afternoon, and evening works well for most people—it captures your energy across the full day and shows how different times vary. But if you prefer different times, pick consistent times and stick to them. 7am, 1pm, and 7pm. Or 8am and 4pm. Or even just morning and evening. As long as you're consistent, ReactLog finds patterns. The frequency is less important than consistency.
Is ReactLog free?
ReactLog offers a 14-day free trial with full access to all features. After the trial, choose Monthly ($2.99/month) or Yearly ($29.99/year). No account required. Your data stays on your device.
Stop Guessing. Start Tracking.
Start your 14-day free trial. No account required. Your energy data stays on your phone.