I use Aventri as my online registration platform, on-site registrar and badge printer, mobile app provider, and lead retrieval service (although to be honest, I have not yet experienced the lead retrieval service onsite). It is fantastic to use one provider for all of these services, since registering online, getting your badge, and the mobile app are three of the major attendee touchpoints for a conference - using one experienced, seamlessly integrated vendor for these products makes my job a hundred times easier, and ensures a positive experience for my attendees. The mobile app experience in particular is highly intuitive to build, and for attendees to use for the first time, and I absolutely adore how fully customizable it is. I've worked in and experienced a ton of mobile apps before, and Aventri by far is the best. The user interface for all of those products are also extremely modern, clean, and kept up-to-date. I'm very happy with all of their services, which are provided for a supremely reasonable price, and will continue to use them often! Review collected by and hosted on G2.com.