For events we use Auctria for guest and auction management. Typically, our clients have a combination of online preview, online and silent auctions to help raise funds for their causes. While we love to see the fun-natured ribbing as guests chide each other to increase bids, there is also the ability to use mobile bidding.
To understand how mobile bidding works, check out this guide with tips on how to setup your Auctria auction plus tips for success: https://guide.auctria.com/bidding_experience/mobile_bidding/
To get started and help your guest bid and bid often, check out this guide: https://www.auctria.com/Web/News/auctria_mobile_app