CloudSync is described as 'Stress-free sync between Cloud Storages. You do not have to manually download and upload files between storages. CloudSync will download and upload files automatically and transfer result will be reported. (File transfer happens on your PC/Mac)' and is a Cloud Storage service in the backup & sync category. There are more than 25 alternatives to CloudSync for a variety of platforms, including Windows, Mac, Linux, Web-based and iPhone apps. The best CloudSync alternative is Dropbox, which is free. Other great apps like CloudSync are Syncthing, Cyberduck, GoodSync and SyncBack.