Support
Have a question? Check the FAQs below or get in touch directly.
Frequently asked questions
Do I need an Apple Watch?
Apple Watch is recommended for automatic heart rate zone tracking during workouts. Without it, Underdog can still read heart rate data recorded by other Apple Health-compatible devices.
How are zone points calculated?
Points are awarded based on time spent in each heart rate zone. Higher zones (Z3–Z5) earn more points per minute than lower zones. Every workout type counts — running, cycling, strength, HIIT, and more.
Can I create a private league?
Yes. Create a league from the Leagues tab and share the invite code with your friends. Only people with the code can join.
Is my Health data sold or shared?
Never. Your HealthKit data is used only to calculate your zone score and power your personal dashboard. It is never sold, shared with advertisers, or used for any purpose other than the features you use.
How do I cancel my subscription?
Open the Settings app on your iPhone → tap your name → Subscriptions → find Underdog → tap Cancel Subscription. Your access continues until the end of the current billing period.
How do I disconnect Apple Health?
Go to iOS Settings → Health → Data Access & Devices → Underdog, and revoke any permissions you wish.
I found a bug or have a feature request.
Email us at hi@tryunderdog.com. We read every message.