Kona Flux: Stress Tracker

Kona Flux is your Apple Watch companion for Body Energy and Body Stress. Powered by our proprietary Body Energy algorithm, Kona Flux helps you understand Body Energy, Energy Recovery, Energy Used, and Body Stress. It also supports a range of health, activity, and device data. Measure Heart Rate with your iPhone's rear camera and flash—no Apple Watch required. All Apple Watch watch faces and iPhone widgets are free to use. ○ Body Energy Kona Flux presents three metrics: — Body Energy: your current energy level — Energy Recovery: energy recovered throughout the day — Energy Used: energy used throughout the day Some Body Energy watch faces display all three values. A membership unlocks the Body Energy detail page in the app, where you can view Body Energy, Energy Recovery, and Energy Used. *Body Energy and Energy Recovery require data from a compatible wearable device. ○ Body Stress Kona Flux uses relevant Apple Watch health data, including Heart Rate Variability (HRV), to calculate and display Body Stress. Your basic Body Stress reading is free on the home screen. A membership unlocks the Body Stress detail page for stress monitoring information and insights into your body's physical load. Some Body Stress watch faces also display HRV. ○ Heart Rate: No Apple Watch Needed Open the Heart Rate detail page, cover your iPhone's rear main camera with your fingertip, and keep still as instructed to measure your Heart Rate. ○ Helpful Status Insights Every data detail page includes status insights to help you understand what the numbers mean. ○ More Data to Explore Kona Flux also supports Steps, Speed, Acceleration, Spatial Direction, Barometric Pressure, Magnetic Field, Ambient Light, and Environmental Volume. Reorder data cards on the home screen. ○ Free Features & Membership View basic data, including Body Energy, Body Stress, Heart Rate, and Steps, without a membership. iPhone camera-based Heart Rate measurement is also free. A membership is only required to access the Body Energy and Body Stress detail pages in the app. All Apple Watch watch faces and iPhone widgets remain free. ○ Subscription Pricing — 7-day free trial for first-time subscribers — Monthly: $4.99/month — Yearly: $24.99/year ○ Privacy & Data Security Kona Flux accesses health, motion and fitness, microphone, and camera data only with your permission. Relevant data is read or processed locally through native system APIs. The rear camera and flash are used only when you actively measure Heart Rate. No photos or videos are captured, saved, or uploaded. We do not upload or sell sensor data or use it for advertising, marketing, or behavioral analysis. ○ Disclaimer Kona Flux is not a medical device and does not provide medical advice, diagnosis, or treatment. Data is for personal reference only, not medical decisions. Consult a healthcare professional if you have health concerns. ○ Auto-Renewable Subscription — Payment: Your Apple Account is charged when you confirm your purchase. — Renewal: Your account is charged within 24 hours before the current period ends, and the subscription renews automatically. — Cancellation: On iPhone, go to Settings → your name → Subscriptions → Kona Flux. Turn off auto-renewal at least 24 hours before the current period ends. ○ Privacy Policy: https://www.exprekona.com/konaflux/api/app/apple/html/agreement/privacy?lang=en-US ○ Terms of Service: https://www.exprekona.com/konaflux/api/app/apple/html/agreement/service?lang=en-US