The Eve interface is simple and elegant. From the bottom of the screen, you can easily access the home where you can see the calendar and add your mood, symptoms and other period-relevant details. You can also access the community and store from the bottom of the screen. In the community, you can see other users' comments and share your own personal experiences, while the store lets you buy all kinds of products.
Eve is an excellent app for keeping track of your period. Not only can you do this, but you can also find out a lot of interesting information.