What is the location of all poke apps in Pokemon Platinum?

In Pokémon Platinum, Poké Apps are accessible through the Pokétch, which is a device obtained early in the game. You can find various Poké Apps by interacting with certain NPCs, completing specific tasks, or finding them in the game world. Notable locations for obtaining Poké Apps include Jubilife City, where you receive the Pokétch itself, and other towns and cities where specific trainers or events grant new apps. Additionally, some apps are unlocked as you progress through the game and complete various challenges.