4shared was /is a beautiful site on desktop. previously on google play an app was available. from this app we could download various Android apps also which were paid. But now google has restricted on this app. now you can only synchronize your downloaded apps. Still if you want to download paid apps ( paid on google play) then you can try on your laptop desktop by opening 4shared. But if it's legal or illegal I do not know. some friends like you have loaded these apps on 4shared. TRY AND UPDATE YOUR EXPERIENCE ON THIS THREAD.