After you obtain the PokeRadar, go to Pal Park, which is at the end of Route 221. Professor Oak should be there, and give you the Chain App after talking to him.
it app for
A platinum chain is a conductor because platinum is a metal that allows the flow of electrical current due to its free-flowing electrons.
You get the Poke-radar app after you obtain the National Dex.
What is a red chain?
you dont get it
a platinum rope chain is good.
its a poketch app.
you go to mt.coronet
App is not an item, it is those things that you put into youir poketch, such as the marking map.
The resale value of a platinum chain will depend on factors such as its weight, purity, design, and current market prices for platinum. It is recommended to have the chain appraised by a reputable jeweler or pawn shop to determine its value accurately.
On your poke'tch when you get it. It is app #1.
There is a pokegear app that allows you to track pokemon. After you first come in contact with it, it will be trackable through that app.