Thanks for your feedback on this topic. In the latest version of the app (Version 3.1.252) we have added a fix to put offline language packs on the SD card. Please update your app to the latest version and let us know if this works.
Microsoft Translator Team
An error occurred while saving the commentAndrew Jackson commented
I have a Samsung Galaxy Note8 with a 256 GB SD card and Android 8.0.0. Microsoft Translator uses 1.17 GB on my phone. I have requested 24 times during the past 2 years that the app be modified to allow it to be moved to my SD card.Andrew Jackson supported this idea ·