How much you pay for your campaigns is up to you. By setting up your budget during the campaign setup, you can control the amount you'll be charged.
The price of each billable action in your campaign is not a fixed rate, as our campaigns are priced in an auction model. The targeting, creatives, and bid you select in your campaign setup will help determine how much each billable action costs.
We recommend setting your campaign budget to an amount you're comfortable spending and then following our campaign optimization guides to reach your goal price per action.