breathe ilo

breathe ilo combines a handheld device with a companion app to enable menstrual cycle observation and fertile-window awareness through breath-based CO2 measurement. Hormonal changes during the cycle influence breathing patterns, and the system analyzes cyclical CO2 changes to display cycle phase information in the app. How it works: connect the device, breathe for 60 seconds daily, and view guidance related to your fertile window.

App-only features include period tracking, symptom logging, and continuous cycle monitoring, designed for people trying to conceive or seeking better cycle awareness. This tool is not a contraceptive and does not replace medical diagnosis or treatment. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/