When buying questions on Fortunica, you can choose to pay for them individually or in a discounted bundle pack, depending on what works best for you. 

Payment is quick and easy, and you can pay directly through the App/Play Store using the same method as you would when buying apps. For security purposes, you may be asked to enter your password or use touchID/faceID for verification.

After the purchase, an invoice will be emailed to you, and you will receive credits in the form of public/private questions. You can check your available credits on the package deals page within the app.

Once you have purchased a pack, you won't need to select a payment method when sending a question unless you've run out of questions.