In-app purchases are a fact of life these days, especially in mobile games. Thankfully, Google has a points program that earns you rewards you can trade for cash that apply to in-app purchases from lots of popular games and services.

Unfortunately, to use your Google Play Points, you need to pre-emptively buy what you want from the Play Points page. Soon, however, you’ll be able to use your points just as you would any other payment method right from the checkout page within the app.