Seeing as the Yetzer Tov loves Mitzvos, we can safely assume that he only uses a Kosher phone to aid him in the fight against the Yetzer Hora. But the Yetzer Hora himself has the latest smartphone with him with all of its bells and whistles.
I can imagine it now. By the time the Yetzer Tov searches through his old Nokia 3200 for Chizuk Hotline 225, the Yetzer Hora has put into Google Maps "Averois in New York" and been presented with 539 options.
How is the Yetzer Tov supposed to compete?