Best period tracker app out there

Its hard to teach my period since Im not on hormonal birth control. This app predicts my period right to the day, every month. My period came three days early one month, but the next month we were right back on schedule. I can also track my symptoms, though I wish I had more slots for custom symptom names. I also wish I could hide features I dont use, like tracking my temperature or pregnancy test results. Otherwise, a great app!

EmilyLMcC about Menstrual Period Tracker Pro, v5.7