Cajun seafood restaurant chain Boiling Crab is using a mobile service from abInventio that seeks to eliminate waiting lines. Called QLess, the technology is designed to reduce turn-aways and no-shows, ...

On a Friday afternoon outside the Boiling Crab in Los Angeles’s Koreatown, about 20 people are lined up before the restaurant’s 3 p.m. opening. The crowd includes high schoolers still carrying ...