One of the first things I loved about Twitter was it’s open API, and all the cool and interesting things people were making with it. This list is comprised of some of the more unique, albeit less useful Twitter apps I’ve stumbled on. If you’re more interested in more productivity-focused apps, check out this excellent post by TechieSouls entitled Some most Productive & Fun to use Twitter Tool/Services.

I’ve tried my best to categorize the apps, but got lazy at the end and the miscellaneous category turned out a lot bigger than I anticipated. Oh well, onto the list:

My Favorite

1. Twistory – Really, very cool
2. Twoogie, M.D. …update your Twitter, Doogie-style

Games

3. The Twitter Tag Project – Tag, you’re it!
4. Twetris …the blocks are tweets.
5. TweetFu …start a fight, track trends
6. Tweet 140 …the closer to a 140 character average, the better your score.
7. TwitMarks …is an experiment to “guess” a person’s gender from their Twitter stream.
8. OutWit.me …real-time word guessing game
9. Twitoku …not quite as tedious as Sudoku-By-Post
10. Twitbrain …tweet the answer to the challenges and earn respecta.
11. Zombie Tweet
12. Beat My Tweet
13. Story Teller …never ending stories and poems.
14. TweetFight …first rule is: you don’t have to talk about TweetFight.
15. Tweet Test …a game using Twitter social data
16. Whose Tweet? • A Twitter game by Mappdev • How well do you know your Twitter friends?
17. Twitter Quizzes
18. Twivia …a trivia game played on Twitter.
19. Twivial …play trivia on Twitter.

Miscellaneous

20. Tweet the Future …In the future
21. TwtBox …a jukebox powered by Tweets
22. ConfessTo.Me …your public confesional
23. Twishlistter – Your wishes are tweets
24. CO2 Emission with Twitter …gotta think green.
25. My Twitter Weighs a Ton – Analyzes and counts related words in your Twitter stream to determine what you’re tweeting about the most.
26. What’s Your Tweet Worth?
27. Twitemperature …How hot are you?
28. FoodFeed – What are you eating?
29. Tweetlib …a random tweet inserted into a short passage, sometimes with humorous results.
30. Trendrr …track, compare, share.
31. My First Follow …pretty self-explanatory.
32. My First Tweet …your first tweet.
33. MyTweet16 …your first 16 tweets.
34. Plodt …Use Twitter to track and rate the things that matter to you.
35. Colibri or Emu …what kind of bird are you?
36. Verse of the Day …Bible verse of the day
37. My Tweet Cloud …get your Twitter tag cloud.
38. Zombie Tweet
39. TwittaScope …your horoscope tweeted to your Twitter account daily.
40. Twollars …the new Twitter thank you money.

Followers, following, and friends

41. FollowCost …Is that Twitter celebrity worth the pain?
42. Twitter 100 – See your followers 100 at a time.
43. TweetEffect …which of your Twitter updates made people follow or leave you.
44. twtfrnd …discover your common shared Twitter friends.
45. TwitterDMer …impress your friends with personalized DM’s.
46. TweetDiff …compare Twitter friends and followers.
47. Who Should I Follow? – Find New Twitter Friends
48. Mr.Milestone …Mr. MileStone will send you a tweet when you have reached…100 followers…200 followers…etc…
49. Whats ____ been tweeting about lately? … change the last part of the url to search different users
50. DoesFollow
51. Twitoria …How many friends are you really following?
52. TwitYa …twilationships.

Local

53. CityTweets …Twitter activity in and about your city
54. Nearby Tweets …instantly find Tweeters nearby.
55. Geofollow …location based Twitter directory.

Feeds, Filters and Collections

56. Twypos – A Collection of Twitter Typos. Vresion Won
57. Twoilet …When Twitter farts, we LOL!
58. Ykyat …you know you’re addicted to
59. LoveTweet! …a real time feed with tweets of love
60. Tweetizen …easy Twitter groups.
61. tweet.ws …an “online social news rack” of popular topics.
62. TwitFave …looks at twitter users favorites to tell you about the most interesting tweets and who favorited your tweets!
63. fav.tweets …allows you to get a list of all the tweets your friends starred (favorites)
64. Twivie …your tweets rating movies.
65. twtpets …Do you have the cutest #twtpet?
66. Tlurk …turn Twitter accounts into public news sources.

Images and Avatars

67. Twindow Pane – A window on the world of Twitter
68. Infinite Monkey Comics …Type something into the keyword box to have a random comic generated just for you!
69. Portwiture …your twitter status, in pictures
70. TweetSnap – Personalized Twitter badges, images, etc…
71. Flickr my background …put your latest Flickr image in your Twitter background
72. twitctur.es
73. TwitSig …convert your tweets to images.
74. TweetSticker … a simple and stylish way to show you tweet.
75. Twitr Grid …Create a grid of your Twitter Tweeps for your blog or profile!
76. Twitter Background Checker …see what your Twitter profile looks like in smaller/larger resolutions.

Translators and Tricks

77. twenglish – The tool that lets you tweet like a twird
78. tweetwrapper …gift wrap your tweets
79. Flip Title uʍop ǝpısdn ǝʇıɹʍ
80. Flip my Tweet …ƃuıʇıɹʍ uʍop ǝpısdn ǝɹoɯ
81. Oh My Science …replacing god with reason – one tweet at a time

Charts and Graphs

82. Udaloo your life!
83. TwitterVenn …venn diagrams of two search terms
84. Twiter Charts …pretty cool

Analytics, Popularity or Stats

85. TwittyPop – Who’s the hottest boy or girl on twitter?
86. TweetWasters – Just how much time DO you spend on Twitter?
87. Twinfluence …Twitter influence analyzer.
88. Twitalyzer …measure your impact and success in social media.
89. Whoot.me …the live Twitter stats provider.
90. Tweet-Rank.de …I have no clue, can someone translate?
91. Retweet Radar …Finding trends in the mountains of information ‘retweet’ed on Twitter.
92. TwitterScore …How does your Twitter profile score?
93. TwitterAnalyzer …analyze your friends.
94. Twitrank …ranks twitter users on a scale of 1-10 based on their authority
95. Tweetica and automation for Twitter
96. TwunkRank
97. TweetValue …How much is your Twitter profile worth?
98. Twick Size …the ultimate measure of twitter power
99. Tweet Rush …real-time Twitter stats.

Oh no…

Help me finish the list!

100. Leave your suggestion in the comments.
101. The best two suggestions will make the list.