With the service, you bid like you do in a real world auction, where the last bidder gets the item, and the price increases. Here, you pay to make each bid, which keeps casual bidders out, and improves your odds of winning.
And with each bid, the price goes up a penny, and a short timer resets (somewhat like the auctioneer saying “going once, going twice…”) So if no one else adds a bid, it’s yours!
They’ve had some pretty incredible wins, like an iPad for under $12.
You can see more about DealDash on their YouTube channel, which includes a variety of videos on using the service, like this one.