It was available as early as 2012, probably earlier as IIRC Microsoft was copying: https://www.pcworld.com/article/470008/bing_translator_app_gets_cool_augment

It was available as early as 2012, probably earlier as IIRC Microsoft was copying: https://www.pcworld.com/article/470008/bing_translator_app_gets_cool_augmented_reality_tool.html https://www.pcworld.com/article/470008/bing_translator_app_g...