Mac: Although Macs require relatively little maintenance compared to PCs, a little care doesn’t hurt. The newly updated OnyX is one of the best options out there and performs a thorough checkup of your Mac absolutely free. Onyx supports S.M.A.R.T drives and every feature is well explained and presented. And if you do get stuck, OnyX features an extensive help guide.
Windows: Dr. Web CureIt! is a portable virus detection application. Although it doesn’t require installation, it provides a comprehensive scan and has many of the configuration options you would expect with a fuller-featured version. It’s not program you’ll run all the time, but is ideal for keeping on a pen drive just in case you want to do a check up on a computer.
iPhone:The Rubik’s Cube was undoubtedly one of the greatest inventions of the 1970s. Now, the retro toy has been given a Twenty First Century twist with the creation of LCube for iPhone. The object of this 3D cube game is to have every face of the cube made up of same-colored squares. To do this, you need to twist the lines of the grid horizontally and vertically.