This game is... not great. I feel like I'm rating it higher than I should, but I am bumping it up because it might be for somebody other than me.
The main character is a whiny loser. Based on how his boss reacts at the start of the game, he could have pretty easily dominated her without his MacGuffin app if he had just had the tiny bit of backbone needed to make a move on her. As for the "bitchy boss," she is just a woman who is tired of dealing with the shit-stain main character who just takes up space at the office and causes more work for herself and the other employees. The main character the app to make everybody in his office ignore his activites, and to make his boss do progressively sluttier activities until she eventually ends up a degraded 'sow' interested in nothing but sex.
Gameplay wise, there's not much to this game. there are two choices you make, both near the end, and they felt like they were added so it wasn't just a kinetic novel. The game's art is consistent, and if you like the preview art you will like the art in game. There are a very limited number of scenes though. The voice acting is just the boss, and her voice is pretty familiar, but there weren't any credits in the game, so I can't verify her name to give a point of reference to other works she might have done.
Best of luck to whoever decides to try this game, I hope you enjoy it more than I did.