Determine how much localization is required for your product - whether the UI can simply be translated, or if the concept needs to be localized to resonate with Japanese users. This a great first step to localizing your product.
Translate your UI into natural Japanese to prepare for launch in the Japanese market.
Had your product translated but unsure if it's ready? Test your translated product with local users to weed out errors and bugs and ensure that your product launch goes well.
Launched your product in Japan but not gaining traction as much as you had expected? I can conduct competitor analysis and local user testing to determine ways to improve your user experience.