Like a combination of Name That Tune and Draw Something, Let’s Sing is a fun, social game that’s good — for those who aren’t tone deaf. The app will give you three songs of varying difficulties to sing for your friends, or to strangers, with the understanding that you’ll only warble “doos” and “dahs” or something similar. If you need a refresher, you can hear a preview of the song. On the guessing side, stumped players can buy the vowels to a song or take a pass. You can also buy the songs you sing from iTunes straight from the app. While this may be a game you only want to play in private, it’s a whole lot of fun to pass tunes back and forth. Strangers can reach out to you for a match as well, but you’re well within your rights to delete a game. Free, for iOS devices.