List of all 18 categories:<br><br>* Greetings<br>* General conversation<br>* Numbers<br>* Directions and places<br>* Transportation<br>* Eating out<br>* Accommodation<br>* Time and date<br>* Shopping<br>* Colours<br>* Towns and provinces<br>* Countries<br>* Tourist attractions<br>* Family<br>* Dating<br>* Emergency<br>* Feeling sick<br>* Tongue twisters
Only the current version so far — new entries appear as the app ships updates.
SPEAK VIETNAMESE - Learn Vietn is an education app by An Thai with 1,000+ downloads (about 2.6K estimated). Released Jul 28, 2017. Install growth, rank history, SDKs and ad networks.
From the store listing: “SPEAK VIETNAMESE - Learn Vietnamese Phrases & Words”