From KID In Digital Co., Ltd.:
A simple, streamline, stylistic, efficient, highly accurate Viola Tuner. It's simple: Let Viola Tune hear the sound of your viola and it will tell you how you have to adjust the string to match the exact sound, as it should be. Features: - Simple operation. Open our app, play a string, adjust, done. - Support Standard Viola Tuning (C-G-D-A). - Brown Wood theme.