BioWink's "Clue - Period Tracker" is an app that helps its users keep track of their menstrual cycles, without using any flowers or pink-themed graphic design elements.
Available in versions for Android and iOS, the app also devotes tracking functions related to cramps, cravings, skin and hair conditions and more.
With features that go beyond those that are typically encountered in most menstrual-period tracking suites, it is a functional period tracker for mobiles that does not have any flowers, butterflies, euphemisms or pink-themed aesthetics.