In my opinion it would be interesting if you add the ‘Brazilian Portuguese’ language to your application and who knows in the forum. 
If it is necessary I am willing to help in the translations, just send me the files to be translated that I translate myself, this makes it much easier for the Brazilian community that uses your application. 
(It’s my first time on the forum, so excuse me if I’m doing something wrong or if I put the topic in the wrong place.) 