Monica (free) is a fun personal assistant that not only gives you voice control but also speaks. You can ask Monica to read aloud your email, news articles, horoscope, or Google Docs, or to access Facebook. You can also ask Monica questions, but you do have to enter text. Monica will, however, read the answer to you. A nice feature is that you don’t need to tap any buttons or anything; you get Monica’s attention by simply saying, “Monica,” and then Monica responds by giving you menu of options, from which you speak your choice.