Where I work at Catalyze, we offer a starting package beginning at $500/mo that includes one database container and one server. Or, if your application only required a secure backend, prices start as cheap as $100/month. We have a calculator here to compare prices: https://catalyze.io/platform-as-a-service/

We've been building applications with both startups and large healthcare organizations like the VA. I'd love to talk with you more to see what your needs are. Feel free to hit me with an email (mark@catalyze.io) with any questions.

Good luck!