Derivative, But Pretty Enjoyable ....
Take one part 'Unfriended' and add one part 'Some Kind Of Hate' .... throw in a blender and voila "Friend Request".
It wasn't a terrible movie. I thought the 'twist' with the ex-boyfriend realizing that killing the final girl could save him since she was supposed to be the lonely survivor with no friends. was decent.
But the ending made no sense to me at all because this movie dealt with them tracking down a weird witchy girl to figure out how to end the situation. (whose mother 'died' in a fire and who was kept alive to give birth.
By possessing the final girl at the end (with her new Facebook name/account. no one would be able to solve anything or research anything. Maybe that was the point ? Not worth thinking too deeply about, but overall the movie is worth a view.