In terms of features, the plans are almost identical. The main difference is how their billing works.The Pro Buyer plan is designed for a specific segment of users — those who buy traffic programmatically.During buying process exchange/ad network may send all of its traffic to your RTB/XML endpoint(s). This often results in receiving a significant amount of unwanted traffic.Let's say you're interested in purchasing traffic specifically from Germany. Unfortunately, the typical ad exchange or ad network may send you traffic from various other countries as well.With our Premium plan, you'll be charged for every incoming request, regardless of whether it aligns with your targeting or not.To address the issue, we have introduced the Pro Buyer plan. This plan separates regular ad requests from empty programmatic requests in billing and also includes a generous amount of free empty requests.If your business model matches the model described above, using of the Pro Buyer plan will result in a significantly lower cost than the Premium plan.