Solarwind Real Time Bandwidth Monitor is Free for commercial use

Dear Team,

I Just want to know that SolarWinds Real-Time Bandwidth Monitor ( version is free for commercial use.
I had downloaded this tool from your free tool section.
As discussed with your customer support on phone call they suggested me to ask this query on  
So, I am here with my question Please clear my doubts that i can use this free tool commercially or we have to purchase the license for this product.
Please find attached snapshot for better understanding.