Rakuten Link is a mobile app for users in Japan, that lets you access the services of Rakuten, such as voice and video calls, as well as the services of other Rakuten partners, such as messaging and messaging through SMS and voice calls to a phone number.

Rakuten Link offers a variety of services for free, including voice and video calls, chat groups, messaging through SMS and voice calls, and more. The services are available for anyone in Japan with a mobile phone number.

You can also earn points for various campaigns through the use of the app.