Keep in mind that a game like Pokémon Go continues to track your location to let you find pocket monsters in the real world. And one of Niantic's top investors is Google itself. Both companies have quite a bit of data on its users--even more so with a location tracking-heavy game like Pokémon Go. If you're privacy paranoid, you may have a hard time being the very best on mobile. For a non-GPS, traditional Pokémon experience, we'd point you to the upcoming Pokémon Sun & Moon games on Nintendo's handheld. But don't get mad at us when you miss out on the high-CP 'mons on your iPhone.