Japan has a large number of locally grown apps that often beat out their Western rivals, as they are more attuned to local needs. Learn about what local competitors exist for your product and identify gaps where your product can succeed.
Get quantitative data about local consumer opinions. I can translate your survey questions into Japanese and source respondents that meet your requirements.
Hear directly from consumers what they think about your product. I can recruit for and conduct focus groups in Japan and provide results and recommendations in English.