About this app
Train in your optimal heart rate zone with real-time voice coaching. No screen watching required. Important: Requires a dedicated Bluetooth heart rate monitor. Apple Watches don't broadcast heart rate data to third-party apps. COMPATIBLE DEVICES: Works with dedicated Bluetooth heart rate monitors including: • Chest straps (Polar H9/H10, Garmin HRM-Pro, Wahoo TICKR) • Armband monitors (Polar OH1, Scosche Rhythm24, Wahoo TICKR FIT) • Fitness wearables (Whoop 4.0 in Live Data mode, MyZone MZ-3) • Any device broadcasting standard Bluetooth Low Energy heart rate data Does NOT work with: Apple Watch, or some other smartwatches. Heart rate zone training is how elite athletes maximize every workout - now it's simple for everyone. Stop guessing if you're working too hard or too easy. Your heart rate tells you exactly where you are, making every session more effective. KEY FEATURES: • Voice Announcements - Real-time audio updates keep you in the perfect zone without checking your screen • Live Heart Rate Chart - Beautiful real-time visualization of your effort • Dedicated Device Compatibility - Works with Bluetooth heart rate monitors (Polar, Garmin, Wahoo chest straps, etc.) • Customizable Settings - Adjust announcement frequency for your workout style • Clean Interface - Distraction-free design that works in any lighting • 100% Private - No data collection, analytics, or login required • Completely Free - No ads, no in-app purchases Perfect for runners, cyclists, and anyone serious about effective cardio training. Medical Disclaimer: This app is for informational purposes only and is not intended to replace professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.
Latest release
What’s New
What's New in Version 2.0 Heart Rate Zones - Personalized training zones based on your fitness level with zone-based voice announcements. Apple Health integration Multi-Language Support -Full app translation in 7 languages: English, German, Spanish, French, Italian, Dutch, and Portuguese. Enhanced Voice System - Improved audio handling with music apps and zone switching buffer to prevent announcement spam. Troubleshooting Guide - Built-in help section with solutions for common voice announcement issues. Review Option - Easy access to leave App Store reviews directly from the menu. Bugfixes
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 30, 2026 · 7:40 AM Free
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