Apple is making a bunch of changes in iOS 9 that will make your devices much more proactive.

For example, if you insert headphones into your iPhone, your device will now recognize the headphones and pull up a "Now Playing" screen instead of having you pull up your music every time you want to go for a run or hop in the car.

iOS 9 also suggests times you should leave if you don't want to be late to an event.

But perhaps the coolest feature is suggesting who an unknown caller is on your phone.

Instead of just showing a mysterious number, Apple's operating system will suggest who the caller might be.

To do this, it scans your email. So if it's a total stranger calling you who's never sent you an email, it might not work as well.

Apple says it does this all anonymously, so your data and personal information is never compromised or given to a third party.