Snag-it for iPhone?

[butters149]

Are there any similar apps to snag-it but for iPhone, I'd like to just take a portion of what I see on the website and save it as an image, for example, I want to copy just the formula for logarithms so that I can upload it to my flashcard app.

Thanks,

 

[villagejazz]

Screen capture is already a default feature of the IP4.

Power+Home keys.