Steemit has plenty of apps to make your experience better. If you go to steemtools.com you will find these apps such as SteemWriter, WordpressSteem, SteemFriends, and SteemStats.
SteemFriends: allows you to communicate with other steemers.
AskSteem: is steemits search engine.
SteemImg: is an image hosting site by steemit
SteemBoost: helps to boost your steem.
I recomended SteemBoost. Below is my referral so we can both gain STEEM.
http://www.steemboost.com/register/ref_id=923
(For SteemBoost.com)