The basics:

AirTab is a loyalty-focused app for bars and social venues. Users get to enjoy complimentary drinks, attend live music events, and engage with other users via messaging, photos, and posts. 

From the BOH TipJar:

AirTab ensures that users never miss trending experiences and events in their hometown or when they are on the go. Locations on the platform benefit from increased footfalls and returning customers.

In their own words:

AirTab is a social networking mobile app that connects trending bars and their customers. AirTab is also a marketing and analytics platform for dining and entertainment industries. We provide experiences for user and insight into real-time with a proprietary Here-Now-Live platform and you can certainly benefit from our “Disruptive” APP.