Post-it Plus App for iOS
The Post-it® Plus App is an application for your iOS device that enables you to take your square Post-it® Notes from the analog world to the digital, seamlessly and easily. You use your square Post-Its in meetings and collaborations. Take a picture of all of them via this app and you can organize, add, edit, etc. You can share to social media or a printer and/or export collected data to pdf, PPT, Excel, or as images. There is an in-app purchase called "Editor's Pack" that is well worth it.
This is a free app