There are many health benefits to tracking your period. From predicting ovulation to determining if you may be pregnant, period trackers are effective tools at documenting these benefits and more. However, there are some additional features to these apps that make them even more appealing and useful. Some of these apps also include diaries, weight trackers, in-app community, visual calendars and more. If you are looking to start tracking your menstrual cycle then check out our list of the best period tracker apps for the iPhone.