Only the current version so far — new entries appear as the app ships updates.
ぱっと換算 - 単位換算・レシピの分量 is a tools app by StackWorks LLC with 1+ downloads (about 1 estimated). Install growth, rank history, SDKs and ad networks.
From the store listing: “Instantly convert between tsubo, tatami, inches, Fahrenheit, and tablespoons. Convert cooking ingredients to grams and calculate recipe quantities to match the number of servings.”