If you live in Japan or are planning a trip to Japan, you may want to add a Japanese keyboard to your phone. This article explains how to add it.
Add a Japanese keyboard (iPhone)
1: Go to Settings
Go to General and then to Keyboard
2: Tap Keyboards
3: Add a keyboard
4: Find the Japanese one and tap it
Add a Japanese keyboard (Android)
1: Go to Settings
2: Tap System and then tap Languages & input
3: Tap Virtual keyboard under Keyboards,
4:Tap Gboard and then Languages.
5: Choose Japanese
6: Turn on the layout you like
7: Tap Done