Yes, わたしのハンバーグ(親子で楽しくクッキングおままごと) is free to download, however it contains in-app purchases or subscription offerings.
Not enough reviews to make a reliable assessment. The app needs more user feedback.
わたしのハンバーグ(親子で楽しくクッキングおままごと) has several in-app purchases/subscriptions, the average in-app price is €3.49.
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