Apple added awesome short video tutorials (tips) about how to shoot and film on their devices (iPhone 7, iPhone 7Plus).
Videos showing various techniques for example: how to shoot stills, how to shoot Selfie, How to capture a unique angle, How to shoot during golden hour, How to shoot a great portrait (iPhone 7 Plus), How to shoot a close-up, How to shoot a vertical Pano, How to shoot without a flash, How To Shoot Action.

You can find full list of How to shoot on iPhone 7 at: Apple Photography Tips and Techniques.

How to shoot stills while filming on iPhone 7

In this video they show how to shoot Selfie with the timer on iPhone 7

How to capture a unique angle on iPhone 7

How to shoot during golden hour on iPhone 7

How to shoot a great portrait on iPhone 7 Plus

How to shoot a close-up on iPhone 7

How to shoot a vertical Pano on iPhone 7

How to shoot without a flash on iPhone 7

How to shoot action on iPhone 7