Only the current version so far — new entries appear as the app ships updates.
13 Hammers: Sight Reading is a music & audio app by Happy Penny Games with 1,000+ downloads (about 2K estimated). +14 installs in the last 7 days. Released Apr 17, 2021. Install growth, rank history, SDKs and ad networks.
From the store listing: “Sightread fearlessly. Go from clueless to classical sight reader!”
