Got a bit of reassurance from fellow xda members. i successfully used this app to download .apk's (in numerical format without the .apk file extension) from the google play store to my pc.. So, these are the 3 best sites which you can use to directly download apk files from google play store thus providing you always the unmodified,safe and secured app which you can surely install on your device without any fear of any virus/backdoor trojans,protecting your privacy,activity and your phone