onecoin.eu is a site that describes about one coin. One coin is also a cryptocurrency that has recently a value of 7 euro. If you visit a site there will be many packages that you must buy for the future earnings. The starter package is just a demo from no earnings can be gained. The mimimum package is of 110 euro. 
      There is a barometer when it reaches 100% , the coin splits into 2 but there is a profit, you can get upto 4 split. It means if you buy 110 euro then you have the chance to earn 220 euro with 1 and a half month.  For more information please go to http://www.onecoin.eu