Yea the Church Service one incorporates the number system and all traditional stuff. No urban, no R&Bish, no Neo-Soul, no jazz....Traditional devotional service type chords. But remember when it comes to churchy stuff, it's not really a number system, but it's more bass line walks and right hand chords, but yes it'll cover the main gospelly and devotional service type stuff.
It's pretty much like the Play by Ear, but it focuses on churchy minorish (Minor 9's Minor 13th) type chords.