Taking a snap shot in apple I phone and iPod is a very easy and simple task. Apple save your screenshot as png file and you can share it via emails, social sites.

Here I am explaining how to take screenshot in iPhone and iPad.

Step 1: For take screenshot you have need only two buttons first Home button and Sleep/Wake button. Home button which is located at the bottom of the device and second is Sleep/Wake button, located on the top of most Apple devices and on the right-hand side of either iPhone 6 model.

Step 2: Capture the screenshot — now press Home and Sleep button simultaneously. You can do it the other way around, but if you're trying to take a screenshot of you Lock screen, Touch ID might kick in and ruin it for you. 

In IPad

In IPhone

Step 3: View and share the screenshots — after press both button screenshot will save on your Photos app. You can see your screenshot just tap your Photos app.