PeriodBro is described as 'Cycle-tracking app designed for partners, fathers, and caregivers to support women in their lives with privacy-first features, multiple profiles, and no data selling' and is a Period Tracker in the sport & health category. There are more than 25 alternatives to PeriodBro, not only websites but also apps for a variety of platforms, including Android, iPhone, iPad, Android Tablet and Apple Watch apps. The best PeriodBro alternative is drip., which is both free and Open Source. Other great sites and apps similar to PeriodBro are Mensinator, Menstrudel, Mooneva Cycle and Peri.