The problem with using this in an app, is that what happens if userapp.io disappears (not uncommon for startups) ? I for one would rather develop those 27% or

The problem with using this in an app, is that what happens if userapp.io disappears (not uncommon for startups) ? I for one would rather develop those 27% or buy an existing solution, rather than take the risk of having a non-functioning app all of the sudden.