this would be totally awesome but the only issue is that we would stop using the app when things got hard. and a random nobody motivator isnt really going to be able to push us because we really dont care about them and they wont ultimately care about us.
so that why people hire coaches. a) you're paying them b) they're doing it because they're getting paid.
its still a good idea though and it could still work but just throwing my two cents. i would use it. at least try to but i also know my brain would coward away at the first hiccup.