Professional app with unique algorithms designed for most accurate tuning. The working range of the app is 70 Hz to 550 Hz so if you are bass player look for “Fine Bass Tuner” app instead. Fine Chromatic Tuner is a chromatic instrument tuner that allows you to quickly and accurately tune your instrument using the built-in mic in your device. The exact frequency of the sound is displayed. Features: - sensitive and accurate algorithms - Automatic note detection - Analog like needle - Shows frequency - Clean bright and simple analog like UI - Display range is -50 to +50 cent - Keeps screen on while working. - Works in noisy surroundings