No data about your menstrual cycle, Diary entries, Notes or other usage habits in any Hormonology apps (including the Hormone Horoscope "Lite", "Pro" and Teen and Female Forecaster) is ever collected, stored or given in any way to third parties. In fact, there is no built-in data collection system in any Hormonology app at all. That’s because I believe your privacy is important--too important to sell, share or view for any reason. This is why it’s key for you to back up any Diary or Notes entries you create by emailing them to yourself regularly since all data you input remains on your own device. My app team and I have no access to it--and that's the way it should be.