Cycle-tracking apps have become very popular, and it is easy to see why. Many women love being able to customize what data lines and health metrics are included in their charts as well as the convenience of being able to update their charts throughout the day, even when they are not at home. Plus, there are countless options when it comes to what apps to use. However, some apps feature predictive algorithm technology, and it is important to understand the reasons to avoid these types of apps.
