LABO try an open sourced messenger platform made in Japan according to Blockchain technology of Ethereum system. It try furthermore a social networking services without any vendor because of their P2P tech in. About ten years passed since Blockchain tech practicalized, but it still maybe not familiar to most poeple except IT designers. LABO application has a solution to the issue. People uses only smartphone can access the Ethereum network and its particular Dapps easily plus they also can chat one another, manage their crypto curencies, and pay for items.