Please recommend a translation application that I can use when traveling abroad

pu1. Google Translator is the best

2017-12-20

OK

pu2. Google Translation App. Not only Japanese, but other languages are also true

2017-12-20

OK

pu3. What I'm using comfortably is adding a Japanese translator from LINE. It works as a conversation, but if you talk alone, translate it for me

2017-12-20

OK