Yes, 腰痛患者的自我练习 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.
腰痛患者的自我练习 has several in-app purchases/subscriptions, the average in-app price is ¥16.60.
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3 out of 5
2 ratings in China