Office Lens is an app available on IOS and Android that allows you to capture whiteboards, documents and business cards. It then has the ability to save your captures into a variety of Microsoft and Non-Microsoft Products.
What sets this app above other apps of this sort is its built-in option of Immersive Reader which will read aloud the content you capture. It will then let you change the size of the text you captured and set the speed of it's read aloud option.
What a great feature for anyone who struggles with reading.
Office Lens on IOS: https://itunes.apple.com/us/app/office-lens/id975925059?mt=8
Office Lens on Android: https://play.google.com/store/apps/details?id=com.microsoft.office.officelens&hl=en_US