This is like the 10th project offering the same generic thing.  " one-stop services"  i wonder if this one will be the one to end up on top?
Interesting that Trex is listing them, tho thats definitely not a grantee of legitimacy, they have been listing some "interesting" stuff lately lol  
They are always so vague about what these tokens do, but from my understanding of this Medium article, why do i need a service to take my API keys (and potentially rob me), if i can just do it myself?  most exchanges will support mobile browsing by now... and woot, ANOTHER buncha randos that want my ID : /