Modhaus is the South Korean entertainment company behind the fan-governed girl group tripleS and the COSMO fan app, through which fans use digital photocards to vote on group decisions. Its partnership with Abstract to power fan engagement for tripleS, ARTMS and idntt was announced in 2025. The company's corporate X account (officialmodhaus) posts official announcements, while group-level activity runs through triplescosmos — the account mod-haus.com links to.