Only the current version so far — new entries appear as the app ships updates.
My baby Drum is a parenting app by DOKDOAPPS with 1,000,000+ downloads (about 1.7M estimated). Rated 4.1 from 4K ratings. Released Sep 23, 2011. Install growth, rank history, SDKs and ad networks.
From the store listing: “To develop your baby's sensitivity”