The easiest way to buy and sell Bitcoin and cryptocurrency. | Coincheck Trading value No.1※1 The number of app users No.1※2※1 No.1 Bitcoin trade volume in Japan! According to jpbitcoin.com (2017 yearly BTC spot trade volume) ※2 According to the research conducted by App Ape in August-October 2017 (Sample size： 50,000 users).