Those aren’t ‘apps’ to him – they’re pictures he presses on his phone that let him do something.
My theory: he was recently in a conversation with someone about an app he doesn’t use, and they had to explain the concept to him. They probably complimented him when he seemed to understand enough, since he’s surrounded exclusively by sycophants, so in his mind he’s proud to be smarter than most people about this.
We’ve seen this exact scenario play out before. He’s so predictable.