TweetVault is a new application that can take care of grouping all the tweets that you have ever sent in your life, and have them stored in a space of its very own. There, they will be searchable and findable much faster than on Twitter. You will be able to go back to the very first tweet that you have sent, and your favorite ones will be particularly highlighted for you to relive your best moments more easily. Plus, TweetVault can be used for saving tweets and exporting them to CSV, JSON and HTML formats.
That is very interesting in itself, but what I like even more is that TweetVault can analyze all the data that it stores, and provide you with full statistics of your Twitter usage. You will be able to see in which months you have sent the most tweets, to whom, and your rate of replies and direct messages.
TweetVault is a paid service – you will be charged 1 English pound per month if you use it. And a free trial can be started anytime you want.
TweetVaultHQ.com In Their Own Words
TweetvaultHQ saves your tweets and favorites and gives you control over your data.
Why TweetVaultHQ.com It Might Be A Killer
It lets you go through your previous tweets much faster than Twitter itself.
Some Questions About TweetVaultHQ.com
How many are really willing to pay for a service like this one? 
