A free program for Android, by Music Breath.

Whether you’re a hobbyist or an aspiring music producer, Voice Tuner – Perfect Song is the trick to kickstarting your musical endeavors. Here, you can record your voice and select the perfect note, beat, and scale to create high-quality music. Take advantage of the built-in equalizer to finetune your recording. 

With the equalizer, you can adjust your audio’s pitch, reverb, delay, and more. You can also use the app’s virtual piano to create the ideal melody for your song. If you’re also honing your piano skills, this feature will come in handy. The application is intuitive given the simple layout of its user interface.