Professional heart rate monitoring and zone-based training for Android. Connect to any Bluetooth heart rate monitor for real-time feedback, structured interval workouts, and comprehensive post-workout analytics.
Everything you need for zone-based training and workout analysis
Large, glanceable BPM display with multi-zone arc gauge. Visual feedback shows your current zone instantly during workouts.
Connects to any BLE heart rate monitor using standard Heart Rate Service. Works with chest straps, armbands, and watches.
Pre-defined protocols: Modified Tabata, 4x4 Intervals, Advanced EMOM. Create custom workouts with multiple steps and zones.
Define your Max HR manually or calculate from age. Zones are color-coded throughout the app for instant visual feedback.
Comprehensive session analysis: HR charts, zone distribution, heart rate recovery, chronotropic competence, and long-term trends.
Export sessions to CSV. Configurable data retention. All data stored locally on your device with full control.
Haptic feedback and optional sound alerts when entering or exiting heart rate zones. Stay in your target zone effortlessly.
Heart Rate Recovery (HRR), Chronotropic Competence, Work-to-Rest Ratio, and zone distribution for deeper training insights.
Dark theme with high contrast, color-coded metrics, and clean typography designed for glanceable workout information.
Science-backed workouts ready to use with one tap
30 seconds vigorous work + 60 seconds slow recovery. Perfect for building anaerobic capacity with adequate recovery.
4 minutes hard (85-95% max HR) + 3 minutes active recovery. Repeated 4 times. Gold standard for VO2 max improvement.
6 minutes hard (90-95% max HR) + 1 minute active recovery. Extended high-intensity intervals for advanced athletes.
After your training session, dive deep into your performance with professional-grade metrics and visualizations.
Time-series visualization with color-coded zone backgrounds
Time and percentage breakdown across all HR zones
HRR calculation across multiple time windows (30s/60s/120s)
Rate of HR increase with reserve-based percentage metrics
Energy system profiling: time working vs. resting
Compare sessions against 1 week to 1 year averages
Train at the right intensity for long runs, tempo work, and interval sessions. Monitor your aerobic development with zone-based feedback.
Structured interval training for road cycling and mountain biking. Track your power-to-HR relationship and recovery metrics.
Perfect for high-intensity interval training, CrossFit, and circuit workouts. Real-time zone feedback keeps you in the optimal range.
Trail runners, triathletes, and long-distance enthusiasts. Monitor cardiac drift and pacing during extended training sessions.
Heart Rate Trainer works with any Bluetooth Low Energy (BLE) heart rate monitor that uses the standard Heart Rate Service (UUID 0x180D). This includes all major brands: Polar (H10, H9), Garmin (HRM-Pro, HRM-Dual), Wahoo (TICKR, TICKR X), and generic BLE chest straps and armbands.
The app requires a Bluetooth heart rate monitor for live BPM tracking. However, you can use any BLE-compatible device including chest straps, arm bands (like Polar Verity Sense, Wahoo TICKR Fit), or smartwatches that broadcast heart rate data via Bluetooth.
You can set your Max Heart Rate manually based on a recent test, or use the age-based calculation (220 - age). The app automatically calculates 5 zones as percentages of your Max HR. You can adjust your Max HR anytime in Settings or from the Monitor screen.
Yes! In addition to the three pre-defined interval protocols (Modified Tabata, 4x4, Advanced EMOM), you can create custom workouts with multiple steps. Each step can have a custom name, duration, and target heart rate zone.
No. All data is stored locally on your Android device using a local database. Your heart rate recordings, workouts, and settings never leave your phone unless you explicitly export them via the CSV export feature.
Yes! You can export your heart rate data to CSV format for any time range: latest session, last 24 hours, or all recorded data. The exported file can be shared via email, cloud storage, or any app that accepts files.
Heart Rate Recovery measures how quickly your heart rate drops after intense exercise. The app calculates your best HRR drop across multiple time windows (30s, 60s, 120s) and focuses on true recovery phases. Better HRR indicates improved cardiovascular fitness.
Chronotropic Competence measures how effectively your heart rate responds to exercise. The app calculates your best rate of HR increase and provides a reserve-based percentage. This metric helps assess cardiovascular health and training adaptations.
Yes! Heart Rate Trainer works completely offline. You only need Bluetooth connectivity to your heart rate monitor. No internet connection is required for monitoring, recording, or analyzing your workouts.
Download Heart Rate Trainer and start your zone-based training journey today.
✓ Works with all Bluetooth heart rate monitors
✓ Requires Android 8.0 or higher
✓ Free with no ads or subscriptions