Microsof said on Thursday it is bringing its Office Lens app to Apple's iPhone and Google's Android. Office Lens, which is already available on phones running Windows, lets people take photos of a document and turn it into a editable file.

The app essentially turns a phone into a scanner, using the camera to take a photo of a menu, for example, and instantly cropping the image and storing it in Microsoft's OneNote note-taking app, or OneDrive cloud storage app.

The app can save an image as a Word file, PowerPoint presentation or PDF file, and uses optical character recognition to make the text searchable and ready for editing.

Windows Phone has pitiful market share, so Microsoft is going cross-platform in its bid to make you an Office user.