スタンドメイト is a social app by stinkbug with 1,000+ downloads (about 1.1K estimated). +7 installs in the last 7 days. Install growth, rank history, SDKs and ad networks.
From the store listing: “Find fellow baseball fans who share your favorite player! Use the app to find people to watch games with, chat, and make in-app calls to go to the stadium together.”