San Francisco-based Spire launched a new version of its app that includes real-time respiration monitoring and integrations with built-in iOS apps.

The device, which looks like a small stone, clips to the users’ clothing and monitors respiration and activity. The latest version of the app now shows a “Breathwave” when users launch the app, denoted by a line that rises and falls as you inhale and exhale. It uses that information along with the accelerometer, and can also be synced with Apple calendars, location and photos to learn what, where, when and who is causing the users’ tendencies towards tension or calm.