From PC world : Microsoft also said the OneNote for the iPhone update frees the app from the Mac, allowing it to create its own notebooks. "This means that you can now create a new notebook, share it with others, and get on the same page?all from the convenience of an iPhone," Microsoft said.
Microsoft also added Office Lens to the iPhone, one of the niftiest features of OneNote. Office Lens turns the iPhone into a portable scanner. Take a picture of a brochure, for example, and it automatically reformats it to best effect. Even better, Office Lens for the iPhone includes optical character recognition (OCR), which can take that brochure and turn it into editable text.
Microsoft also added Office Lens to the iPhone, one of the niftiest features of OneNote. Office Lens turns the iPhone into a portable scanner. Take a picture of a brochure, for example, and it automatically reformats it to best effect. Even better, Office Lens for the iPhone includes optical character recognition (OCR), which can take that brochure and turn it into editable text.