Only the current version so far — new entries appear as the app ships updates.
Champaign Unit 4 is an education app by Apptegy Play Store with 1,000+ downloads (about 1.5K estimated). +1 installs in the last 7 days. Released Jan 6, 2023. Install growth, rank history, SDKs and ad networks.
From the store listing: “The official Android application for Champaign Unit 4”