This Guitar Tuner is powered by the "Guitar Gravitas" App engine. It is a streamlined guitar tuner that makes tuning your guitar quick and easy. It features:
• User friendly interface.
• Auto and Manual tuning modes.
Auto Mode
• The app detects the string you are playing and helps you to get it in tune.
Manual Mode
• Tap a string on the fretboard and tune your guitar.
Terms and conditions: http://www.guitargravitas.com/termsandconditions.php