Only the current version so far — new entries appear as the app ships updates.
LHT Calculator: Stylish is a tools app by LHTSOFT with 5,000+ downloads (about 5.8K estimated). +1 installs in the last 7 days. Released May 18, 2018. Install growth, rank history, SDKs and ad networks.
From the store listing: “Convenient and Stylish Free Electronic Calculator (Various Themes)”