Phoenix Online Auction Is The Valley's First Fun and Easy To Use Bidding App. With the Phoenix Online Auction app you can preview, watch, and bid in our auctions all from your mobile phone. Participate in our sales while on the go or at your leisure from your mobile device and gain access to the following features: - Quick registration - Follow upcoming lots and receive push notifications to ensure you never miss a chance to bid - Leave absentee bids - Bid live using our simple “swipe to bid”