is it possible to have active projects in both appen and rws?

I was working on the Diamond project, but it stopped part 1. I'm on Ruby, but I don't know how much it pays. I do the tasks but I'm afraid because I've never worked on something so disorganized. I received an invitation to work on the Hibiscus project (Crowdgen), but it seems to be on the same platform (Parimango). So I don't think I'll risk it because they are two different companies on the same platform, and I use the same email for both. What do you think? BR-PT