Successful application adoption depends on some key ingredients. To create a great app, developers need to provide an acceptable user interface, great technical performance, features for user engagement and accessibilty, and language translation capabilities. Application Programming Interfaces, or APIs, aid developers in achieving these goals. Here in the ProgrammableWeb Translation category developers can find the best APIs for translation. Here, readers can find foreign language translation APIs, dictionary and thesaurus APIs, and even machine translation tools. To receive updates about Translation APIs, click the TRACK THIS CATEGORY button below. And, if you want updates from other ProgrammableWeb categories, be sure to click the track button on those category pages as well.