Happy Diners is Din Tai Fung’s first Facebook Game app (www.fb.com/dintaifungSG), where customers can ’host’ dinner parties by inviting their friends, with 12 chances to win a sponsored dinner party for 10, worth $250. Even if you don’t win, all app users will receive surprise promotion mechanics for use at Din Tai Fung restaurants. Till 31 December.

Club Vivre has launched its speedy HopHop Chef app, where local chefs will actually cook at your home–better than deliveries! With 24 hours’ notice, you can select your dishes and time of arrival of the chef, who will then bring ingredients, cook and serve, and leave your kitchen clean–all in two hours. There’s a minimum order of $120, and each dish serves four persons. Currently on Android, soon to iTunes.