Musical.ly is a free download on Android and iOS. Musical.ly Review lets you make music videos easily on your phone. You can select from a big library of international music. Musical.ly Review is a video social network app from china. The Musical.ly app was launched in 2014. Of late the app has become quite popular among young people in many countries. We used Musical.ly to find out what the fuss is all about. Musical.ly Review App looks like quite good on Android.