Experience your heartbeat as a live haptic sensation on your wrist. Connect with loved ones by sharing real-time heartbeats, fostering a sense of presence and intimacy across any distance. Choose from various haptic styles for a personalized and calming experience.
1.1.2
May 29, 2026
Bug fixes to onboarding process.
Unlock Partner Sync for two.
Flutter is an app that allows you to feel your heartbeat as a live haptic sensation on your Apple Watch. It also enables you to share your real-time heartbeat with a partner, friend, or family member.
Flutter reads your heart rate from the Apple Watch and translates each beat into a precise pulse on your wrist using haptic feedback. This creates a tangible, rhythmic experience.
Flutter offers monthly, quarterly, and annual subscription plans for its Partner Sync feature. All plans include a 7-day free trial.
Yes, Flutter offers a Solo Sync feature for personal heartbeat awareness that can be used without a subscription. The Partner Sync feature requires a subscription.
Flutter is designed to work with Apple Watch for its haptic feedback. The app itself is available on iPhone to manage sessions and connections.
Flutter provides a privacy policy detailing data handling practices. Users can also delete their account directly from the Profile screen within the app.
Flutter was last updated on May 29, 2026, with version 1.1.2. This indicates active development and ongoing improvements.
Flutter has an age rating of 4+, making it suitable for a wide range of users.