You can use multiple services as has been answered already, but I would suggest that using multiple services can create a "negative signal" by investors. Also, the likelihood that you will get *any* inbound interest from AngelList without already having "high signal" investors or an active syndicate is very low.

So I would suggest that you focus on whatever is going to give you the highest level of support and service. I recently spoke to the WeFund guys who are still actively curating what gets listed to their investors. I think if you don't have a network of investors, these smaller networks are a good starting point.

I've helped a lot of entrepreneurs here on Clarity with their early-stage fundraising questions (read my reviews). I'd be happy to talk to you to learn more about the specifics of your situation and give you advice based on my understanding of where you're at.