And, yes, there are guitar tuner apps that will make tuning your guitar way, way easier than it’s ever been. So, without further ado, let’s jump in and check out all the features of our best guitar tuner apps. The Best Guitar Tuner AppsBest Overall GuitarTuna GuitarTuna GuitarTuna packs some top-notch learning resources in addition to providing a solid, reliable tuner in an attractive and simple interface. Best for Advanced Players BOSS Tuner BOSS Tuner The BOSS Tuner app is a simple interface designed to look exactly like BOSS's iconic TU-3 pedal. Best Chromatic Tuner Pitched Tuner Pitched Tuner Pitched Tuner is another no-frills app, with a solid chromatic tuner and a very useable free version for basic tuning needs.