You can now earn free IOST just by signing up by your mobile number https://hub.iost.io/register?inviteCode=SkALm1L4Q&lang=en this the link from where you have to sign upand you will get IOST coin for free....
after signing up you will be asked two simple questions. and you have to ans both of them
ALL OF ABOVE
and you will get free coins...
one again this is the link to join https://hub.iost.io/register?inviteCode=SkALm1L4Q&lang=en