Dec 14, 2013 - You may have heard of our name on the App Store before - we created the Optima Guitar Tuner, which is the #1 rated guitar tuner on the App Store. Recently, we've been working on a revolutionary guitar strum tutor - for all guitar players regardless of your skill level! The Optima Strum Tutor 1.1 gives you the ability to create your own songs with tons of preset chords. Then you also have the ability to create your own custom chords. There's loads of hidden features, so check it out!