While both the Android and iOS apps received updates, the delivery service is only available on iOS at the moment. When users visit a restaurant's profile page, they'll see a "get it delivered" button. If you choose delivery, you'll see a list of the delivery partners available and will complete your transaction through your service of choice -- Caviar, Grubhub or Uber Eats. In the future, OpenTable will show estimated delivery times and costs, too. It's unclear if or when OpenTable might bring the feature to Android.