Is ZoneSteady free?
Yes. Every workout feature is free. An optional upgrade removes ads.
Frequently asked questions
Find answers about ZoneSteady, supported devices and heart rate zone training.
Do I need an Apple Watch?
Yes, for live heart rate during workouts. The iPhone app shows your live workout, history and Trends.
Which devices are supported?
iPhone with iOS 17 or later and Apple Watch with watchOS 10 or later, including Apple Watch Ultra.
Do I need an account?
No.
Where is my data stored?
On your iPhone and in Apple Health. See the Privacy Policy.
How are my zones calculated?
ZoneSteady can calculate personalized zones from your heart rate reserve using the Karvonen method, or you can set custom zones. Learn how zones work.
What workouts are supported?
Walks, runs, indoor and outdoor, Hybrid Race, Free Hybrid and many other Apple Watch workout types.