As of April 6th 2017, Flume is no longer available via the Mac App
Store. Read our blog post why.If you purchased Flume Pro as an
in-app purchase from the Mac App Store, you must convert and follow
If you purchased the Flume Pro in-app purchase or Flume 1.x via the
Mac App Store, you can convert your purchase into a standalone licence
that can be used to activate Flume Pro via our direct version...