Apps like HRV4Training

Here are some great alternatives to HRV4Training by A.S.M.A. B.V. :
Elite HRV: Wellness & Fitness
Elite HRV: Wellness & Fitness
★4.3
HRV Monitor - HR Variability
HRV Monitor - HR Variability
★4.7
Healthzilla: Stress & Habits
Healthzilla: Stress & Habits
★4.2
sleep²
sleep²
★3.3
Heart Rate Monitor - HeartIn
Heart Rate Monitor - HeartIn
★4.6
Welltory: Heart Rate Monitor
Welltory: Heart Rate Monitor
★4.6
Visible: Pacing for illness
Visible: Pacing for illness
★4.8
HR2VP Cycling & Bike Training
HR2VP Cycling & Bike Training
★3.3
Heart Rate Plus: Pulse Monitor
Heart Rate Plus: Pulse Monitor
★3.6
Pulse Oximeter - Beat & Oxygen
Pulse Oximeter - Beat & Oxygen
★3.7
HR & HRV Logger
HR & HRV Logger
★3.3
Health App: Mood Tracker
Health App: Mood Tracker
★4.7
Blood Pressure Tracker App
Blood Pressure Tracker App
★4.1
Health Tracker: Blood Pressure
Health Tracker: Blood Pressure
★4.5
CardioMez - Heart Rate Workout
CardioMez - Heart Rate Workout
★4.2
Complete: Wellbeing & HRV
Complete: Wellbeing & HRV
★4.6