Yes, 麻雀AI 配牌チェッカー is completely free and it doesn't have any in-app purchases or subscriptions.
Not enough reviews to make a reliable assessment. The app needs more user feedback.
麻雀AI 配牌チェッカー is free.
To get estimated revenue of 麻雀AI 配牌チェッカー app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.