What's Good Against is a free iPhone app developed by Daniel Rosas. It falls under the category of Utilities & Tools and aims to provide Pokémon trainers with an easy and quick way to determine type advantages in battles.

The app features a simple and user-friendly interface, allowing users to input their opponent's types and instantly see what their Pokémon is weak against. This makes it convenient for trainers to strategize their battles and make informed decisions.

One of the standout features of What's Good Against is the search function. If you're unsure about the type of your opponent's Pokémon, you can use the search feature to automatically fill in its type. The app supports searching for any Pokémon through Generation VIII, ensuring it remains up-to-date with the latest Pokémon releases.

It's important to note that What's Good Against is a third-party app created by fans and is not affiliated with the Pokémon brand or Nintendo. This disclaimer ensures transparency and clarifies the app's unofficial status.

Overall, What's Good Against is a handy tool for Pokémon trainers who want to stay on top of their game and make strategic choices based on type advantages. With its user-friendly interface and accurate information, this app is a valuable addition to any trainer's arsenal.