iPhoneIndiaBlog.com

This Star Scales Pro app will teach you one scale, and all its patters, at a time. It allows you to concentrate on one scale in all keys, and practice it until you sharpen your skills. You can switch between different keys, tunings, or playback mode, as well as create your favorite scale patterns, or find a particular one using the search bar tool. Usually costs $5.99, is Free for a limited time. Grab it, here is the App Store link.

Features:
• Contains all blues, rock and jazz guitar scales
• Share one pattern of scale as image or all patterns of scale as pdf (by e-mail, or on Facebook, twitter, tumblr, etc.)
• Send exactly what you see
• Choose color or gray scale for shared files
• Zoom in/out of fretboard to view pattern
• Rotate fretboard to vertical position in portrait view