Niantic announced that Pokémon GO soon be able to display ratings of our Pokémon, so that we will know if these are useful for combat.
To do this, the company has decided to add a new feature to the game called "Evaluate" that allow team leaders analyze the Pokémon you want, also indicating what is their strong point.
Thus, Niantic tries to end third - party tools that accessed the game to calculate the IVs of the Pokémon, something not allowed by the company that also bring the player a nice permanent ban.
How I said, the upgrade is expected to be published in the App Store during the day, so remain vigilant to let us know when it is available.
Pokémon GO is available free and universal.
Pokémon GO (AppStore Link) Pokémon GO