Prevent Identity Theft When Selling Your Old iDevice with 1-Click “Clean Slate” Privacy Safeguard for Ultimate Privacy Protection. Wondershare SafeEraser is the ideal iDevice “erase” application designed to permanently wipe all personal information from the device using US Military spec over-writing technology to render the data unrecoverable; returning the device to a “clean slate” state before you resell, donate or trade it in.