Sagantosu Fan Token is an iPhone application by JASMY INCORPORATED that aims to boost the spirits of the Sagantosu team and the city of Tosu. The app offers various features to engage users in supporting the team and the community. Users can easily access the Sagan Tosu official website and social media channels to stay updated on matches and events.

Additionally, the app includes missions designed to encourage users to participate in activities that support the team, the local area, and foster a fun community. By completing missions, users earn points. Furthermore, users can personalize their avatars and display them along with a QR code on their own card for easy sharing and identification.