It might sound like a very niche problem, but I was constantly wondering: “Wait… how long have I had my tampon in?” I used to set random alarms, check the time, forget to start them, or end up doing mental math during my period. Eventually I got tired of it and decided to build an app myself. Mavie lets you start timers for tampons and menstrual cups, sends reminders, suggests recommended usage times based on your flow and absorbency (while still letting you customize everything), and le...