Gifts are billed to your primary payment method (like a credit card), not your own Apple Account balance.
The Google Play Store does not currently support gifting a specific individual app. You must instead provide the recipient with credit to buy it themselves. can i buy an app as a gift
You cannot "gift" free apps; instead, you can just share a link to them. Gifting for Android Users Gifts are billed to your primary payment method
You can only send gifts to people whose Apple Account is in the same country or region as yours. then confirm the purchase.
Choose a delivery date and a visual theme, then confirm the purchase.