Tidalflow is a women's health technology company whose central thesis is that female healthcare has been built on generic protocols that stop working once hormones start shifting. Its flagship app, Lila, targets perimenopause — the four-to-ten-year window before menopause when estrogen swings and produces a long list of physical and mental symptoms that most women say they were never warned about.
Lila's approach is nutrition and habit tracking rather than clinical treatment. Users snap a photo of a meal and get advice within seconds, chat with an AI coach at any hour about cravings, energy crashes or what to eat that week, and complete a single daily check-in that produces a Peri Score showing how food and symptoms connect. The plan adapts as the body responds, and the app tracks weight trends rather than daily fluctuations. Nutrition protocols were developed with a registered dietitian specialising in perimenopause.
The app has reached the number one position for perimenopause on the App Store and reports more than 100,000 users with a 4.7-star rating. It is free to download with a paid premium membership, and Tidalflow is explicit that Lila is a wellness coaching product rather than a medical service — decisions about HRT or hormone testing still belong with a doctor.
