Kardia - Deep Breathing Relaxa

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- New customization options : vibrations, background color, end session sound, fullscreen display mode, visual breathing cues
- Use Kardia with your phone in your pocket with the new Lock button
- Improved user interface, more convenient breathing mode setting
- Target and Advanced modes are now part of Kardia's free features. All users can set the breathing rate between 1 and 15 cycles per minute.
- Another 10 days to try out all the features of Kardia for free users !