NowPlaying for Mac displays the current playing track (name/artist/duration/artwork) in the menu bar and provides basic playback controls.
Just that simple, no funny business.
NowPlaying integrates itself into the menu bar, taking no desktop space, no dock icons.
All options are available through a simple menu.
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Small screen MacBook owners:
If you still experiencing sudden disappearing of the app, try pause or quit iTunes, the app will shrink to a single icon, you can then disable options such as artwork/artist/duration to further save menu bar spaces.
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Support Issues
I recommend you to reach me via the support website or email for support, instead of using the review system as a support board, because: