Smartphones include several built-in applications, and countless free and paid apps are available from their respective online stores. Tablets are essentially smartphones with larger screens and no built-in telephone capability (although Skype and other voice-over-Internet apps are available). Tablets may have only front-facing cameras for video calls, whereas smartphones have both front and rear cameras. See smartphone, tablet computer and how to select a mobile device. Primary Built-In Applications 1. Phone and contact address book 2. Texting 3. Video calling (Apple FaceTime) 4. Web browser 5. E-mail 6. Weather 7. Predictive typing (see predictive text). 8. Voice dictation 9. Voice-activated virtual assistant (see Siri, Google Voice Search and Cortana). 10. Alarm clock, stopwatch, timer 11. Calculator 12. Calendar 13. Note taker 14. Music player 15. Photo album 16. Camera (still and video) 17. GPS navigation 18. App store search Available for Download Following are handy program categories out of the thousands of free and paid apps (see online app store). Depending on model, some of the following may come with the phone. 1. Flashlight** 2. Dictionaries, encyclopedias See CDE apps. 3. News, weather and stock markets 4. Video calling (Skype, Tango, etc.) 5. Games and entertainment 6. E-book reader 7. Language translators 8. Retail store finders 9. Mobile tag readers (see QR code) 10. Converters (money, measurements) 11. Magnifying glass and mirror 12. Internet radio (Pandora, etc.) 13. Music identifier (Shazam) 14. YouTube viewer 15. Voice recorder 16. Emergency message sender 17. Compass ** Beware Flashlight Apps! Third-party flashlight apps (and other seemingly useful software) may be malware, especially for the Android platform. It pays to search the Web for the name of the app and see what you can learn. See malware.