ZoneTrainer gives you instant voice reminders and audio alerts the moment you drop below or exceed your target heart rate zone. Train hands-free without looking at your phone.
Calculate your training zones instantly using Age, Karvonen (HRR), or Lactate Threshold (LTHR) formulas.
Everything you need for precise zone training without unnecessary cloud clutter.
Your heart rate and workout logs never leave your device. Zero accounts, zero tracking, zero external network requests.
Seamlessly pair with any standard Bluetooth Low Energy heart rate chest strap or optical arm sensor.
Instant voice reminders and audio alerts whenever you enter, leave, or drift out of your target heart rate zone while running or cycling.
Store and review your past workout sessions, time spent in each zone, and heart rate trends stored safely in local Room database.
Compatible with standard GATT Heart Rate Service (0x180D) Bluetooth LE devices.
Industry-standard ECG chest straps & optical sensors verified for flawless BLE streaming.
Dual-band BLE heart rate monitors with instant pairing and high reliability.
Premium chest strap monitors supporting standard Bluetooth HR profile.
Compatible with Huawei Watch, Garmin, and any smartwatch or optical armband that broadcasts standard Bluetooth LE heart rate telemetry.