Find poke app 8(berry searcher) by a girl on route 208.
In the app store
You can get it from Professor Oak, in Pal Park.
the poke radar isn't an app it is a key item, i think you get from prof rowan after completing the national dex
at the poke app store in jubilife city when you talk to the president on the right door.
You get most of them after you defeat the elite four. Hi Jake Nichoals
Go to the Pokemon Centre in Eterna City and speak to the brown haired girl, she will hand you the Pokétch app "Friendship Checker".
go talk to the poketch app guy in jubilife city after getting your 3rd gym badge
get the Poke tech App Poke happyness
You get the Poke-radar app after you obtain the National Dex.
First Go to power plant and find thief. then go to Lavender city and get Poke flute app then go to radio press the top of circle and boom you've got poke flute
There isn't one.
to get the luner Pokemon Cresselia you have to see it on full moon island then see it pop up in random areas (there is a poke app to see where the poke mon is going