Only the current version so far — new entries appear as the app ships updates.
KTR Classes is an education app by Education Lily Media with 1,000+ downloads (about 4.1K estimated). +1 installs in the last 7 days. Released Apr 3, 2022. Install growth, rank history, SDKs and ad networks.
From the store listing: “Connect with KTR Classes in an efficient and transparent manner”