This is not strictly SharePoint, but my favorite little app Office Lens is now available for Android and iPhone.
I’ve been using this little app for Windows Phone for about a year now and it’s my favorite app.
It takes pictures of every clever little idea we write down on whiteboards here at Bouvet and makes them readable, as well as straightens out the picture before saving it to OneNote.
Saving it to OneNote makes it available on everyone of my laptop’s and tablets, or via a web browser.
The ability to save as a Word document or PDF works great, goodbye old scanner. The documents are saved to your OneDrive account and are also easily available on any device.
Picture of a document The options when saving a picture
More info here http://blogs.office.com/2015/04/02/office-lens-comes-to-iphone-and-android/