Yes, 日语拼音熊 (大陆汉语拼音版) is free to download, however it contains in-app purchases or subscription offerings.
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日语拼音熊 (大陆汉语拼音版) has several in-app purchases/subscriptions, the average in-app price is 36.99 lei.
To get estimated revenue of 日语拼音熊 (大陆汉语拼音版) app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.