It's a semi-regular question <a href="https://hn.algolia.com/?query=ask+hn+first+users" rel="nofollow">https://hn.algolia.com/?query=ask+hn+first+users</a><p>I think it would help to give a bit more detail in the question about the type of users (or customers?) you try to target. Mobile game, selling a physical product, consulting, selling in shop vs on the internet, B2B vs B2C, is it free/free-trial/cheap/expensive/open-source?