Only the current version so far — new entries appear as the app ships updates.
毎日ボイトレ™️:アプリで歌が上手くなる is a music & audio app by カラオケ大学 with 5,000+ downloads (about 9.6K estimated). +8 installs in the last 7 days. Install growth, rank history, SDKs and ad networks.
From the store listing: “From only 3 minutes a day! Get better at singing with the app! A voice training app based on the track record of teaching 10,000 people is now available!”
