EtreCheck is an app that displays the important details of your system configuration and allow you to copy that information to the Clipboard. It is meant to be used with Apple Support Communities to help people help you with your Mac. EtreCheck automatically removes any personally identifiable information from the output.

DoYourData Super Eraser - рowerful data erasure software to permanently erase files/folders, wipe hard drive data, wipe unused disk space or erase data on storage media. DoYourData Super Eraser, easy-to-use yet powerful data erase software, is designed for permanent data erasure. It provides easy and secure solution to permanently wipe hard drive data, erase selected files/folders and wipe unused hard disk space. It also can permanently wipe data on storage media like USB drive, memory card, digital camera, SD card, external hard drive etc.

DotPass is an app for generating and retrieving passwords. You enter a graphical pattern in a dot grid and a plain text seed word (like "facebook", "work email" or whatever makes sense to you), and the app then generates a password based on this unique combination.