Applications built with Levlr
Beerby
A location-based site that allows beer lovers to log their beer, and find where they can drink their favorite beers. This mobile app (iPhone, Android) is an example of what can be built as a white-label application. Users are motivated to log their beer using game mechanics like achievements and levels.
Levlr.com
This site itself uses the Levlr platform, including every type of game mechanic: Levels (Levls), Experience Points, Achievements (Badges), etc...