Is Cookie Run: Kingdom free to play?

Where can I check my purchase records?

I didn't get an item I purchased!

I can't buy anything. (Purchase Error)

I'd like to avoid unwanted purchases.

Available payment methods

Rules on in-app purchases and cancellations

I accidentally used an item, can I get it back?

How can I obtain Crystals and what are they used for?

My Crystals disappeared! Why is that?

I closed the game while making a purchase. Was my purchase cancelled?

Are there other ways of purchasing Crystals apart from buying them in the game?