ukulele tuner

I want a ukulele tuning app. I want one with an arrow that moves to indicate the string's tuning. The arm should either bear left or right to help the user know if they need to tune their strings higher of lower to reach the intended note. Lastly i would like the notes GCEA to be at the top o the ukulele o that the users are aware of what to tune the ukulele to. I've attached a picture to give more of a visual representation of what i want