Here’s how:
Tap theApp Storeapp to launch it.
Find the app you want to gift bybrowsing or searching.
Tap the app to go to its detail page.

Tap the action box (the rectangle with an arrow coming out of it).
Enter the email address of your gift recipient, your name, and a message.
In theSend Giftmenu, sending the gift today is the default.

To change that, tap the menu and select a new date.
Swipe side to side to preview the gift email styles.
When you find one you like, keep it on screen and tapNext.
Review all details of the gift.
To make changes, tapBack.
To gift the iOS app, tapBuy.
Otherwise, the only option to gift an iOS app is to use an iPhone or iPad.
You’ll need to do this for pay for the gift).
go for the App Store.
Search or browse the App Store until you find the app that you want to give as a gift.
tap the down arrow next to the price of the app.
In the menu that pops up, clickGift This App.
Next, choose whether to send the gift by email today or on another date.
Choose the style of the email that includes the gift.
Select your style from the list on the left.
If the preview of the gift email looks good, clickNext.
Review the gift, price, and other details.
To change something, clickBack.
To gift the app, clickBuy Gift.