SAN FRANCISCO: Microsoft (MS) said on Wednesday it acquired British-based software keyboard maker SwiftKey, saying it would be integrated with the tech giant’s ‘intelligent systems’ for mobile devices. SwiftKey makes keyboard apps which are used on some 300 million Android and Apple devices, replacing default interfaces with a more efficient one. The price was not disclosed but media reports said Microsoft paid $250 million. SwiftKey, which uses artificial intelligence to help make keystrokes more intuitive and efficient, expands Microsoft’s efforts in the domain.