AMPLI.FI - Live online music community. Twitch for tunes.
Keezy Drummer - Make a beat in seconds
Bandlab - Capture, nurture, and collaborate on song ideas in the cloud
Zenbeats - A cross platform music making app
WordPress - WordPress is web software you can use to create a beautiful website or blog. We like to say that WordPress is both free and priceless at the same time.
FL Studio Mobile - Create & save multi-track music projects on a smartphone