What is this hmpgr thing? Are you developing your app with them as a platform or is this your actual startup? Kinda confused because I actually did sign up to

What is this hmpgr thing? Are you developing your app with them as a platform or is this your actual startup? Kinda confused because I actually did sign up to try your app, but now I'm signed up to this other app and I really didn't want to do that.