On the 18th anniversary of Sabrina’s first period, their conversation took a new turn. As they reminisced about the importance of fertility awareness, Toni shared a dream she had carried for years—a vision of creating an app that could seamlessly accompany her book Taking Charge of Your Fertility. She knew that while TCOYF had empowered scores of women, the traditional method of tracking cycles with pen and paper felt outdated in a world of smartphones.

There was already an abundance of cycle-tracking apps on the market, some of which had even received input from Toni previously. However, no one app was both focused on the symptothermal method approach to FAM, while also closely tied to a ready-made knowledge-base like Taking Charge of Your Fertility. Proper education is critical to practicing FAM correctly, and risks of "garbage-in, garbage-out" with apps, in particular, was always on Toni's mind. Wouldn't an app that perfectly reflected the approach of TCOYF, while also referring back to key points in the book, function as a great partnership?