There are a lot of software for Desktop Operating Systems that can recover deleted files and restore them. Till now, if I wanted to recover something from my Android’s internal storage, I had to connect it through USB to my PC and use a software like Recuva (freeware) to recover it.

Undelete, an application, brings the same mechanism to Android for recovering deleted files from both internal and storage drives. It works quite good and has a very good user interface. While testing, it recovered most of the files, except when I tried to recover files after formatting my card. More about it inside.