Connect with your CALM. Wearable ECG Sensor to monitor your exercise in real time


Monitor and record your exercise session
>Real time ECG and heart rate
>CALMness score
>Motion intensity

Monitor and analyze your sleep
>Sleep stages
>Sleep times and efficiencies
>Heart rate variability
>Breathing while asleep

Sync your data with the cloud
>View your data online at

Integrate with with HealthKit
>Sync your resting Heart Rate, and Exercise Heart Rate with HealthKit
>Read your height and weight information from HealthKit to complete your profile

What’s New

Version 1.9.6

Maintenance update
Enable forced firmware update
Bluetooth behavior tweaks

Ratings and Reviews

2.3 out of 5
3 Ratings

3 Ratings

TTSoul ,

Not ready for prime time

Endless error loop on attempting to create an account, sign in or reset a password. Syncs with phone, then doesn’t provide an ECG. Useless so far.

App Privacy

The developer, EMC Healthcare K.K., has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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