Cardiograph - Heart Rate Meter
MacroPinch
Instant Heart Rate: HR Monitor
Bodymatter
Cardiograph Heart Rate Monitor
ExaMobile S.A.
Cardiogram: HeartIQ MigraineIQ
Cardiogram, Inc.
Welltory: Heart Rate Monitor
Welltory: heart-rate monitor & blood pressure log
Health Tools
Spandan-ECG/EKG on smartphone
Sunfox Technologies Private Limited
Kardia
AliveCor Inc.
Cardi Mate: Heart Rate Monitor
HarmonyBit
Cardiograph Heart rate monitor
Knight Studio