--- title: "Flutter: Heartbeat Sync App - Reviews, Revenue and Downloads in United States | Apple App Store" description: "Flutter lets you feel a heartbeat directly on your wrist through Apple Watch. Designed for calm, focused awareness, Flutter turns heartbeat into a live haptic experience you can physically feel in re" --- # Flutter: Heartbeat Sync App — United States ![Flutter App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/4b/e0/79/4be07921-2b16-517e-6066-53d5ba3a416d/AppIcon-0-0-1x_U007ephone-0-1-85-220.png/434x0w.png) **Developer:** [Unknown](https://apptail.io/developer/unknown-taEDgc) **Category:** Health Fitness **Rating:** 5.0/5 (2 ratings) **Price:** Free **Bundle ID:** tech.cyberian.flutter **Store:** Apple App Store **Country:** United States **Version:** 1.2.1 (released 2026-09-12) **Original Release:** 2026-04-14 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6758436973) **AppTail Page:** [https://apptail.io/app/flutter-heartbeat-sync-app-OTFz/united-states](https://apptail.io/app/flutter-heartbeat-sync-app-OTFz/united-states) ## Flutter Description Flutter lets you feel a heartbeat directly on your wrist through Apple Watch. Designed for calm, focused awareness, Flutter turns heartbeat into a live haptic experience you can physically feel in real time. During a session, Flutter reads heart rate, displays BPM clearly, and translates each beat into a precise pulse on your wrist. Different haptic styles let you choose the sensation that feels most comfortable or meaningful. Flutter includes Solo Sync for personal heartbeat awareness and Partner Sync for sharing live heartbeats with someone you care about. Couples, friends, and family can connect through invite-based sessions and experience real-time heartbeats together, creating a simple and intimate way to stay connected across any distance. Sessions are easy to start and stop, with a minimal interface designed to stay out of the way and keep attention on rhythm, presence, and connection. Features • Solo Sync for personal heartbeat awareness • Partner Sync for sharing live heartbeats with another person • Real-time heart rate (BPM) display • Live haptic heartbeat feedback on Apple Watch • Multiple haptic pulse styles • Invite-based partner pairing • Minimal, distraction-free interface • Account deletion from the Profile screen Flutter is a quiet, modern way to feel rhythm, presence, and connection. • Privacy Policy: • Terms of Use: ## Flutter Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/a0/c3/da/a0c3dad6-fccf-2292-dcd8-e5e0b79f0314/1_Splash.PNG/1284x2778.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/98/1d/b2/981db291-9127-9231-e002-7d48ad66e008/2_Onboard_5_Partner_Syncs.PNG/1284x2778.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/72/25/3d/72253d14-c984-550d-e5f7-41825d25401b/2_Onboard_6_Solo_Syncs.PNG/1284x2778.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/55/91/b9/5591b929-0155-c43a-a60a-89b3d8b472b3/3_Home_screen.PNG/1284x2778.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/30/5d/41/305d4127-b389-aeb5-a719-7c462aff1c98/IMG_7524_1242x2688.jpeg/1242x2688.png) - [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/dc/8f/55/dc8f5549-c11f-e5c6-4631-76019df3ae4d/5_Partner_Sync_4_session.PNG/1284x2778.png) - [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/9b/53/2f/9b532f73-d62d-9723-2717-6ff8197e645c/2_Onboard_8_Haptics.PNG/1284x2778.png) - [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/4c/b5/d9/4cb5d94b-cdde-c9d8-95cf-fb51b89880fa/IMG_9104_1242x2688.PNG/1242x2688.png) ## Flutter Rating Breakdown in United States - 5 stars: 2 (100%) - 4 stars: 0 (0%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 0 (0%) ## Flutter In-App Purchases | Item | Price | |------|-------| | Partner Sync Annual | $119.99 | | Partner Sync Quarterly | $39.99 | | Partner Sync (Monthly) | $14.99 | ## Apps Similar to Flutter - [Kento Health](https://apptail.io/app/kento-health-Onnd/united-states) - [Dottie - Your Health Assistant](https://apptail.io/app/dottie-your-health-assistant-Ayre/united-states) - [Middle River Yoga](https://apptail.io/app/middle-river-yoga-LtTv/united-states) - [Koru: Stress & Anxiety Relief](https://apptail.io/app/koru-stress-anxiety-relief-DHpy/united-states) - [Calmscient](https://apptail.io/app/calmscient-EgLy/united-states) - [Rest Pulse](https://apptail.io/app/rest-pulse-KBvz/united-states) - [Ear Beats: Pulsmesser](https://apptail.io/app/ear-beats-pulsmesser-olRA/united-states) - [Бинауральные: Фокус и Сон](https://apptail.io/app/binauralnye-fokus-i-son-qUTA/united-states) - [HeartBeatSync](https://apptail.io/app/heartbeatsync-SqXA/united-states) - [Kaho - Personal AI Therapist](https://apptail.io/app/kaho-personal-ai-therapist-rgwB/united-states) ## Flutter Available In - [United States](https://apptail.io/app/flutter-heartbeat-sync-app-OTFz/united-states) - [Germany](https://apptail.io/app/flutter-heartbeat-sync-app-OTFz/germany) - [Taiwan](https://apptail.io/app/flutter-heartbeat-sync-app-OTFz/taiwan) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends. - [Search Apps](https://apptail.io) - [Top Charts](https://apptail.io/top-iphone-apps) - [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer) *Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*