Download of WeFlow 2.1.1 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The software is included in Lifestyle Tools. This free Mac app was originally designed by Flux Group, LLC.
From the developer:
WeFlow anticipates how traffic will be ahead of time. It forecasts the traffic situation on several departure dates and times so that you can chose the best day and time to hit the road. The tool collects and combines information from several future car trips to forecast how road traffic will behave in any situation.
You may want to check out more Mac applications, such as Build-a-lot 3, XPlaneCentre or TravelRecorder, which might be related to WeFlow.