If you're building a nascent mobile app it probably won't take millions of dollars and year(s) of works to get up and running, regardless of what backend you us

If you're building a nascent mobile app it probably won't take millions of dollars and year(s) of works to get up and running, regardless of what backend you use. If you do have a project that will take millions of dollars and year(s) of work to get up and running, I'm going to guess you have much bigger problems than what backend you use, and choosing something like Parse won't help you that much.