I would be happy to discuss this with you. Are you looking for a prototype or a full blown product? I specialize in development, and product planning. Please feel free to get in touch.
Microsoft Azure. For startups they give you a ton of stuff for free, and if you talk to someone there you can probably get even more. And when you're eventually ready to pay, you can just continue with them. Google's cloud offering is also free or cheap, but it's unclear what the future of tha...
Sounds like you need help with your messaging. Might be a good idea to hire someone to help with that, not just a content writer but someone that can help you craft the message your audience needs.