No revenue estimate for the App Store: Apple publishes no install counts, and its star-rating counts don't calibrate to sales the way Steam's written reviews do. Reviews and prices only.

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QuizKnock新作！ 数字が答えになる問題に、「大体どれくらいか」で答える新しいクイズゲーム！ わからなくても予測でチャレンジしよう！