A focused contraction timer for iPhone and Apple Watch
Start the first contraction in the iPhone app or with a tap on Apple Watch. Once the session and Live Activity are active, the Lock Screen provides a read-only glance; use Start or Stop while the iPhone stays locked, without reopening the app. Siri is the only hands-free path and opens the app.
Completely free — no paywall, no ads, no subscription.
| App | Best For | Price |
|---|---|---|
| Contraction Timer by Nestling | Active-session Lock Screen, Apple Watch, and partner share | Completely free — no paywall, no ads, no subscription |
Features and availability can change; the App Store listing is authoritative.
Contraction Timer by Nestling
Completely free — no paywall, no ads, no subscriptionBest for: Active-session Lock Screen, Apple Watch, and partner share
- Once a session and Live Activity are active, glance at timing or act while the iPhone stays locked, without reopening the app
- Start the first contraction with a tap in the native Apple Watch app
- 5-1-1 timing-pattern summary and revocable partner share
Disclaimer: Contraction Timer by Nestling records and summarizes timing. It is not a medical device, does not diagnose labor, and does not decide when to seek care. Follow your maternity care team's plan; for an emergency, use your local emergency service.
Comparing options? See six contraction timer apps compared, built from each app's own App Store listing.
Learn more on the Contraction Timer overview, support page, or privacy policy.