I was see this application in my friends mobile first time . it was so amazing and fast to transfer any fine or application no matter how big is it. its transfer them all in few seconds or minutes. its free of cost and easily download from play store or app store. I like its interface too. its so easy to use too. it also give freedom to save file in any specific folder.
The best think is its also available for pc or laptop. I always use it to transfer files to my laptop to mobile as well too.overall its best application to use for faster file transfer.