The Guitar's Chord Library app for iPhone and iPad

This is the Guitar Chord Library.

Features:
+ Support of two fretboard positions: normal and upside down.
+ The fretboard information contains the fingers number or note names.
+ Strict compliance with the theory of music: youll see notes that comprise the chord (not enharmonic notes).
+ Favorite chords

Additional features:
+ Chord theory.
Well show a chord structure and write a chord note by note together.
Its for free for major and minor chords in the Try Before Buy mode.
Its available for each type of chords in the + Theory mode.
Just tap on the Theory button under an active preview chord diagram to view a chord theory or choose an app mode.

+ Music theory.
Its available in the + Theory mode. We will discuss the notation, steps, accidentals, enharmonic, chords (triads) and frequent mistakes. There are some examples how to read and write intervals and chords in this mode. It does not cover the full music theory, but its enough to understand the chord theory.