For Hennessy, this app isn't just about re-branding and increasing sales but also helps reach the spirit drinkers in Hong Kong. "This is a niche market in Hong Kong--there are just about 70,000 [spirits] drinkers," said Chiu. "In three months after the app became available, users have collected 200,000 Hennessy Mix virtual stamps--this is a CRM boost for Hennessy."

Another one of the firm's mobile apps ties into the 39th Hong Kong Art Festival. Dubbed 'Hong Kong Art Festival on the Go', the app is simple but allows 15 people to plan when and what to see during the event and users to share their planners to Facebook, Twitter or via e-mail, said Chiu. The app--winner of Best Marketing Smartphone Apps (Creativity) Award in the 2011 Hong Kong Marketing Smartphone Apps Popularity Contest--supports motion-based navigation and provides the most updated seat availability charts, videos, photos, and other program information, Chiu added.