Maximize windows just like Windows on OS X

I have owned a MacBook Pro for a year, however at work I use a Windows laptop. Since I really like the functionality to maximize a windows by just pushing it to the top of the screen, I would like to have that on my Macbook too. I am using Spectacle to assign shortcuts like "windows" to maximize a window, which works well and I recommend it. However, is there any application to maximize a window like the way you can do it on a Windows laptop/pc, just by pushing the window to the top of the screen? Note: I mean maximize window, not fullscreen.