I sent yesterday a paper to such journal of springer publisher for consideration, in the same time I have got a new free distribution service and an open-access called research square seems like arXIV it is not a peer-reviewed and make resarch available in a fast way. Now I want to know should I withdraw my paper from that research square serivice since I sent it to journal for review or I leave it there for comments to improve my paper in the future  ? Is what I did ethical? More than that I want to know difference between that research square and Arxiv?

I sent yesterday a paper to a journal of publisher Springer for consideration, in the same time I have got a new free distribution service and an open-access called Research Square. It looks like Arxiv; it is not peer-reviewed and makes research available in a fast way. Now I want to know: should I withdraw my paper from that research square service since I sent it to a journal for review, or should I leave it there for comments to improve my paper in the future? Is what I did ethical? More than that, I want to know the difference between that Research Square and Arxiv.