We're here to help. If you have questions, issues, or feedback about Flux, you can reach us using the options below.
Tap the "+" button in the center of the tab bar. Adjust the 6 sliders to reflect how you feel today, then tap "Save Today's Log". It takes less than 60 seconds.
Your Vitality Score (0-100) is a weighted average of your 6 daily metrics: energy, mood, libido, sleep quality, stress (inverted), and physical activity. It gives you a quick snapshot of your overall state.
No. Flux works fully without an account. All your data is stored locally on your device. You can optionally create an account to sync your data across devices.
Go to your iPhone Settings > Apple ID > Subscriptions > Flux Premium > Cancel Subscription. You'll continue to have access until the end of your current billing period.
Open Flux > Profile > tap "Upgrade Plan" > tap "Restore Purchases" at the bottom of the paywall screen.
Yes. Your health data stays on your device. We do not sell or share personal data. Read our Privacy Policy for details.
Your body's 24-hour internal clock. Testosterone peaks in the early morning and declines throughout the day. Flux maps this rhythm so you can plan your day around your biology.