On my opinion, of course Electroneum is not a scam. Please read there white paper & check there website so that you will gain a lot of information about them.
I have read the white paper and the technical white paper, and this is the reason why I think it is a scam.
What have you seen in the white paper that makes you think it is not?
Even I thought it'd be scam at first, but looking at all those stats my doubt is clear now and it's a legit one