Surkus is an app to help brands, planners, and venues find the right people to attend their events, whether for product launches, brand activations, or red carpet parties. The concept is known as “crowdcasting,” and Surkus chief creative officer Jin Yu says the hope is to make the app the “Uber of curating your exact crowd.” Event hosts use the system to indicate the number and type of guests they are looking for based on interests, demographics, or social media reach. Those interested in attending events create a profile by linking their Facebook account. The system analyzes that person’s likes, friends, interactions, and hashtags and sends them notifications of upcoming events based on that data. Guests are paid a fee to attend, ranging from $5 for Playboy's recent high-profile Super Bowl party to more than $100 for less popular events. The app’s geofencing system automatically checks guests in and out of the event, which allows organizers to see if they stayed the minimum amount to receive payment. In addition to requiring guests to remain on site for a set time, hosts can also require mentions on social media, for example using a hashtag or posting a specific image. Surkus pays the guests via PayPal within 30 minutes of the completion of the event, and then a final bill is sent to the event host. After the event, Surkus sends the organizer a report with pictures of those who attended, their average time on site, and their combined social media reach. Surkus is available for iOS and Android.