올차트-ALLCHART is a lifestyle Android app designed for worldwide rankings and official popularity polls. This platform focuses on popularity voting for contests and auditions, offering a transparent space where live voting details are disclosed. Users can engage in various content and voting activities through their smartphones, allowing them to upload profiles, photos, and videos from their social media accounts. The app ensures fair voting practices by preventing manipulation through crowd methods, providing real-time updates on changing rankings. Developed by SMTN Inc., ROPIK ONE TECHNOLOGIES LLC., Minkyu Cho, and Seyoung Lee, 올차트-ALLCHART aims to foster fandoms and enable direct communication among users.