Azure Face API is an amazing tool because it allows developers to incorporate facial recognition technology in their software without requiring them to know anything about machine learning or computer vision. Developers who already use the Azure platform will be able to use this API within minutes. Simply send the picture(s) you would like to analyze in an API call, and Azure will return information about the faces in that picture as JSON. This is useful for recognizing facial expressions, emotions, and comparing faces. Review collected by and hosted on G2.com.

The age estimation feature isn't very accurate yet. However, as time goes on, this will hopefully get better. Review collected by and hosted on G2.com.