If you're interested in a natural family planning app that'll track your periods and basal body temperature to figure out your fertile days, Premom is a good option. It tracks periods and ovulation with some precision, charts fertility, and offers cycle insights. The app offers fertility awareness education through articles vetted by doctors and links to fertility tests and products. Premium subscribers get more features like personalized cycle reports and virtual consultations with fertility experts.
Another contender is Aiva, an all-in-one self-care platform for women's health. It includes a period tracker with personalized cycle insights and ovulation prediction. Aiva also offers a variety of built-in trackers for pregnancy, water consumption, daily activity and body health, so you can keep an eye on your overall health and store your personal health data safely.