The Illinois company behind a popular fertility app is being sued for allegedly sharing user data with third-party companies without first securing users' consent. Easy Healthcare Corp, based in Burr Ridge, is the developer of ovulation tracking app Premom, which helps users to identify the days on which they are most likely to conceive. A lawsuit filed against the company alleges that a variety of sensitive data belonging to app users was shared non-consensually with at least three different firms located in the People's Republic of China (PRC). Information allegedly shared includes sensitive healthcare information, device activity data, geolocation data, user and advertiser IDs, and device hardware identifiers.