1. Google Goggles: Take a picture of anything and, if it's in Google's data base, you will get extensive information about it.
2. Walk or Sky Guide for iOS or Star Chart for Android: Take a picture of stars and constellations and these apps take over to teach you.
3. Visual Measure for iOS or Advanced Ruler Pro for Android: Take a picture of anything and the app will tell you the dimensions. They measure anything.
4. Instant Heart Rate: Tells anyone's heart rate.
5. Google Translate: Snap a picture of any foreign language text and it will translate it for you.
6. CamScanner: Scan documents and even convert them to PDF.