This is not technically an app. However, Google Drive does have a scanner feature that can come in handy if you only have a few things to scan and upload once in a while. This option has very limited scanning features, making it less ideal for someone who has to scan or edit documents more often. The most helpful thing is that enhancements are automatically applied to your documents after uploading them to Google Drive. This means less work for you when it comes to editing your documents. This feature is most suitable for people who just need a basic scanning feature for occasional use. If you need to scan documents more often than from time to time, then one of the apps that were mentioned previously might be a better option for you instead.