There are no significant differences other than the appearance of the display windows.

Windows and Mac OS X tend to place certain items such as the window maximize, close and minimize buttons in different places and we have ensured these buttons are placed where the user would expect to find them on their operating system.

Apart from this, the versions are identical. You can use the backup option in the Windows version of the Perfect Diet Tracker, then restore this backup to the Mac or Linux versions and vice versa, and if you change computer in the future from one platform to another you can take your Perfect Diet Tracker with you.

Most of this help site has been written on a Mac, so the screen shots tend to be from the Mac version, but the Windows version works in exactly the same way.