Apple had more than 4000 free apps in the apple store, try for example :
Findfreeapps, appsshopper, free apps, apps freehd
All are legal 100, buy the way even gailbreak and sepia software are legal and apple use it always to upgrade its operating system iOS, and programs,
Findfreeapps, appsshopper, free apps, apps freehd
All are legal 100, buy the way even gailbreak and sepia software are legal and apple use it always to upgrade its operating system iOS, and programs,