Bandmate Chromatic Tuner – FREE (This should cost money)
Well this is a no -brainer app….
A Tuner that shows you the note and also displays it on a music staff! Then along the bottom you see how flat or sharp you are. You can also select which instrument you are working with at the top. When you do select a specific instrument the pitch’s are transposed for that instrument. You also select whether or not to show the notes as a flat or sharp note.