Don't waste your candies and stardusts in weak Pokemons! CP Evolution Calculator is all u need! It is a tool that help to estimate the CP after evolution for every Pokemon in Pokemon GO that has the ability to evolve. It also shows the candy number that is required for evolution for every Pokemon. This is a fan App, all the copy rights on Pokemon itself belongs to Nintendo. And all the data is obtained from internet, there may be a little offset on the estimated data. The data accuracy will gain as more data are gethered in the internet.
App also gives a lot info of the game, including a hatch list for all the Pokemons come out of an egg as well as some general info of the gym system.
In the version 2.3, battle helper is also added to show the relation of a Pokemon type which will help the player to select a Pokemon to defeat your enemy and win gym reward.