The Words iOS Sample Code by Words demonstrates how to download, install via CocoaPods, and import the SDK. Although the SDK is in beta stage, developers can intent to integrate words features into applications such as dictionary, synonyms, and antonyms.
Youtube has chosen Gengo and Translated.net for professional/human translation of video captions. Users can access the services from their Youtube accounts, and then work directly with the services from there.
By now you've probably heard the thunderclap that just went round the API ecosphere – Google is deprecating a host of APIs. After years of building developers' trust in their platform, Google is effectively pulling the rug out from under many services built not only for commercial means, but for non-profit and educational causes too.