Best widgets for iPhone

Because widgets are so accessible, they make it easy for you to check the latest news or sports scores, check your reminders or delivery status, make some calculations or swap clipboards. Unlike notifications, widgets are always there, right in the Today view of Notification Center, ready and waiting for whenever you need them. All you have to do is enable them and you're on you're way.

So, which widgets are the very best? Which widgets should you enable right now?