Apps are often more of an obstacle to connection than the aid they promise to be. What we mean to each other cannot be quantified with ones and zeros.
To get more thin, artificial connections that never used to happen, we give up the real ones. Now friends don't have to met up to get the latest news. They know everything already, so no need to met up with a real live person.
My advice is if you have a great friend in real life, do NOT friend them on Facebook!
Of course, as long as we've been wealthy enough to afford separate shacks, we've had people die in isolation without anybody knowing. It's not a new problem. But I think it's going to become more common, not less, unfortunately.