The 5.0.27 version of qtVlm for Mac is provided as a free download on our website. The actual developer of this free software for Mac is qtVlm. The program lies within Lifestyle Tools, more precisely Weather.
From the developer:
qtVlm is a weather routing software for virtual and real sailing boats.
You may want to check out more Mac applications, such as Weather Tracker, I Can Present or Eldy, which might be related to qtVlm.