Etymological dictionary description

The Android App "Italian Etymological Dictionary" is the mobile version of Etymological Vocabulary of the Italian Language of Ottorino Pianigiani.
The Etymological Vocabulary of Pianigiani has been published in two volumes in 1907. It was then republished at least four times, until 1993.
It can be used for very simple etymological reconstructions, which constitute the majority of the work.