Pokedex

Pokedex is a new feature in PTD as of version 2.8. It keeps track of pokemon you've seen and achievements you've unlocked. You must save your PTD profile online to use this feature.

Acheivements
This option lets you view your acheivements and how you can complete them.

Collection
This option lets you view all of your owned Pokémon. That means that you can trade it and you previously owned it.

NOTE: When you have an evolved Pokémon but didn't owned it's pre-evolution, it will be automaticly added in your collection.