Guitar Kit is super convenient tool for searching guitar chord forms.
You can search almost fingering form and display it. Guitar Kit has reliable huge preset chord form library.
And you can create your original fingering forms.

Guitar Kit has very large preset library, but you can view a target chord form so easily!
You can directly select a chord form by smooth scrolling cell or focus on a little chord forms by typing a part of chord name. You can search by various Enharmonic Equivalents.

And Favorites Tab allow to memory your favorite chord forms.
If you tap the guitar picture, play each note. And if you select a chord in the list or cell, play chord any times.

By using Make tab, you can create your original chord forms.
And you can handle those as like preset library completely.
You can slide decided chord form to left or right. So you can add chord forms changed Root note in succession.

Scale Tab allow to view many popular scales.
You can change mode to left hand or right hand for all frets.
Support iTunes File sharing, so you can backup and restore user chord forms & favorite one manually.

Ver 4
Picker (Scroll wheel) for selection of chord change to new designed "Scroll Cell". You can select a chord more easily.
If you use Duplicate Form function, you can easily make new chord forms from an already existing chord form.
If you use Suggest Form function at Make Tab, Guitar Kit suggest randomly new chord form contains selected notes on 1 octave keyboard.

You can read full function description at support page.
http://therootage.com/iphone/guitar-kit-en/