Does anyone know of any karaoke apps for Android where you can hear yourself sing using the built in microphone or a microphone app that you have downloaded?
There is an application called Fusic which puts you next to the official video (if exists) when singing. It has the capability of using the built-in microphone and camera in order record. I recommend you access the Play Store and download the application.
Fusic on Play Store: https://play.google.com/store/apps/details?id=com.fusic.fusic