This app was designed to help you complete your Pokédex as you play through Pokémon Red, Blue, and Yellow. There is even an option to unlock the diploma from the games to save and share! Nowadays when you encounter a wild Pokémon, you can tell whether or not you've caught it already because there is a small Pokéball by its name if you've caught it. But it wasn't so back in the day! Although the games were revolutionary for their time, they made it difficult to keep track of which Pokémon you'd already caught. So I developed 151 to solve this problem as we all play through Pokémon Red, Blue and Yellow again this year for the 20th anniversary of Pokémon! It's a very simple app; basically a checklist. When you catch a Pokémon just touch it and the app will remember for you. You can choose to show all Pokémon, only Pokémon that you've already caught, or only Pokémon that you still have to catch. You can also sort alphabetically or by number. Check it out!