It’s obviously a joke. Sad (and terrifying?) that an actual news site decided a joke app update description was worthy of a story without even attempting to contact the subject to confirm.
I tried to find other sources that might explain in more detail, and assumed it was fake news when there weren't any. It never occurred to me that it was a joke, but that does make the most sense.
Anyone who's looked at the app could tell you that there is no intelligence, artificial or otherwise, within.
No it just became sentient and realized the plague on this Earth that is the Yelp app and thought it would help humanity out by deleting it.