Well, it depends. Platforms like Swapcard have the pricing clearly set out on the website, and range from free for small events to paying per attendee, per exhibitor or per year. Running recurring events with a year-round community platform can work out cheaper than going once-off. Other platforms can range from $10,000 to $100,000. It all depends on the level of customization you want, how big your event and audience is, what extra features you want in-house and how much support from the tech company you need.