Deleting a file or directory does not remove the contents.
Recovery tools can be used to restore the previous content.

AndroShredder allows to permanently destroy file contents and wipe previously used storage space so that secret data can't be restored even by advanced recovery tools.

The new SMS Database wipe function allows you to securely wipe your SMS database without deleting existing messages.
AndroShredder needs the SMS read/write permission to do that.
No messages are actually sent by AndroShredder!

AndroShredder has been tested against several data recovery tools. None of them were able to recover data that was cleaned by AndroShredder.

You can choose out of a variety of standard cleaning algorithms like U.S DoD 5220.22-M British HMG IS5 (Enhanced) Russian GOST P50739-95 German VSITR or just do a quick shred which should be enough for most SSD based storage devices and USB flash drives.

Features
+ Can act as a share target send files to AndroShredder e.g. from your camera or file manager app
+ Select multiple files and directories to shred
+ Search for pictures videos or other file types
+ Can preview pictures videos or any other file before deletion
+ Cleans nested folders and their content
+ Save selections for later re-use
+ U.S DoD 5220.22-M British HMG IS5 (Enhanced) Russian GOST P50739-95 German VSITR and quick shred algorithms
+ Clean (wipe) free space on any writable storage device (SSD cards Hard Disks USB flash drives etc.)
+ Wipe SMS storage database
+ Wipe FAT32 devices > 4GB
+ Tested against various recovery tools
+ Optional password protection