Tunesque 

Tunesque is a lightweight Mac application that allows you to search for music, movies or any other content on iTunes store, without having to actually launch iTunes or access the Mac App Store. This way, you won't have to waste any of your time in order to search for specific items. You can just use this tool and find the desired content in just a few seconds.

After launching Tunesque, it will be conveniently placed on your Menu Bar so that you can access it with just a click of a mouse. In order to find specific items on iTunes or Mac App Store, all you have to do is simply type the name of the desired product. Once you have done that, you can easily view details about it like its price or description in a very simple manner.

Furthermore, Tunesque lets you select the country for which you want to search the items. This way, you can make sure that the sought-after application, song, movie or book is available in your country and you can proceed to buy it simply by clicking on it.

All in all, if you are in need of a small and easy-to-use Mac tool that allows you to instantly search for movies, songs, applications or books on iTunes and Mac App Store, then the lightweight Tunesque is a good choice.