Handy Scanner Pro/Tiny Scan Pro
Platforms: iOS ($2.99), Android ($3.99)
Stand-alone scanners are so 20th century. Turn your tablet into a document scanner using apps such as Handy Scanner Pro (pictured) for Android tablets, or Tiny Scan Pro for iOS. These apps let you use your tablet’s rear-facing camera to "scan" documents by taking photos of them and applying filters to maximize readability. Then you save the scanned documents as PDF or JPG files.