Newly updated to support the vibrant, richly detailed graphics of the Retina display, Guitar Tools is the ultimate hand-held utility kit for guitar players of any style or skill level, brought to you by Planet Waves, one of the D’Addario company’s family of world-renowned musical instrument accessory brands. Enjoy the full functionality of the Chordmaster and Scale Wizard apps, the core features of ProTune and ProTempo, plus reference tools that make it easy to find the nearest music store or instructor wherever you may roam. Developed exclusively for iOS by the minds at Audiofile Engineering, Guitar Tools packs a wealth of easy-to-use, professional-grade guitar utilities into one elegant application for your iPhone or iPod touch.