You can easily make daily notes on your fertility and the data from these notes can be used for calculations. All the data in the app are protected with a password.

INER Cycle is a convenient application for making daily notes on your fertility. It can be helpful for a couple trying to get pregnant. It is recommended to use the app together with the companion application called INER Observation.

This application is based on the method called the Hormone Reflection. This is a method for determining the fertility days. The Hormone Reflection method is based on the idea that the fertility days are the days on which the level of sex hormones is at its highest.