Redeemed in-game. Almost a freebie.
Rotating 1 PokéCoin bundles in the shop! New 1 PokéCoin bundles will be available in the shop each week as one-time purchases. The contents of these bundles change weekly, so be sure to get what is available each week. Right now, a new 1 PokéCoin bundle is available for you that contains the following.
Pokémon GO will now offer a one-time bundle of 30 Incense for 1 PokeCoin, essentially free. This will allow players to spawn Pokémon wherever they are, even at home. This incense will last an hour, up from the usual 30 minutes, so that’s 30 hours of spawns wherever you happen to be.