Ultimate Push Notifications by Ecomfit - Retarget customers and protect abandoned cart to boost sale
Bowtie - Bowtie is a desktop accessory that allows you to see and control your music (iTunes, Spotify...
ChannelizeIO - Sell Live | Boost Sales | Increase Brand Affinity
CoverSutra - CoverSutra gives you a handy and attractive way to control iTunes without ever leaving your current...
Pusher Beams - Send push notifications programmatically at scale
Muzzy - it’s a tiny and gorgeous iTunes companion that lives on your menu bar. For Mac OSX, its free!