Better Notes - Simple notes app that ties notes together with #hashtags
AMPLI.FI - Live online music community. Twitch for tunes.
Paper - Super-clean writing space with a lot of configurability that stays out of sight when you don’t need it.
Bandlab - Capture, nurture, and collaborate on song ideas in the cloud
Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.
Blattarco - Creative self-developement for musicians of all level.