[theGREENsuit]

I thought the same thing. I assumed it was an app for dealing with clutter on your phone. I'm sure they have their reasons for naming the product as such, but I think 'Butler' or 'Secretary' or something that implies your inability to contact someone directly would have been better.

[kazinator]

If those are taken, then there are synonyms like sentry, sentinel, guard, guardian, watchman, protector, monitor, screener, defender, shield, chaperone, paladin, vigilante, ...

How did they end up with "janitor". I'm looking at thesaurus.com and it doesn't list "janitor" as a synonym for any word that denotes a protector of something.

There is "custodian"; sometimes building janitors are called custodians, but that word has connotations of taking care of something (having it in your custody).