What are some alternatives?
When comparing SuperBeam and Send Anywhere, you can also consider the following products
WeTransfer - WeTransfer is a free service to send big or small files from A to B.
SHAREit - SHAREit allows you to transfer files and data from your phone to another device without having to rely on WiFi or a data plan.
FilePizza - Open source application used to transfer file via WebRTC and WebTorrent.
Plover - Browser Airdrop - transfer files to anyone, any device
Volafile - Volafile.org offers real time filesharing and fast downloads without delays or annoying countdowns.
Dropbox - Online Sync and File Sharing