unrealBook
Website: http://www.diystompboxes.com/unrealbook/
Support: http://unrealbook.uservoice.com/
OS: iOS
Price: 5.99
unrealBook allows you to access your entire library of music or lyrics on your iPad with ease.
Replace your bulky and heavy binders with a small and light device filled with your music PDF files. The alphabetized and indexed list makes it easy to find the song you are looking for. unrealBook is the answer for the gigging musician!