Echofon (previously known as Twitterfon) is a free Twitter app for the iPhone with a simple interface and a nice set of features, including Replies, Messages, Favorites, Search, Friends list and writing tweets, retweets, along with the ability to post photos taken from your iPhone camera. Echofon is among one of the best free iPhone apps for twittering and gets the job done quite nicely.

This 3rd Party App is available at the Apple iTunes AppStore. Browse the full list of all AppStore apps filed under the AppStore category.