Airfoil
Commercial
Airfoil streams any audio from your computer, from music services like Spotify and Pandora.
WiFi Audio Wireless Speaker is an android app to play music wirelessly.
AirPlay
Free
AirPlay is a allows wireless streaming between devices of audio, video, device screens, and photos, together with related metadata.
Compare TuneBlade with alternatives
Compare WiFi Audio Wireless Speaker and TuneBlade and decide which is most suitable for you.