Have you ever felt constrained by the 140 character limit of Twitter to express yourself sufficiently? Did you have to split your thoughts into multiple posts just because you couldn't say what you wanted to in 140 characters. Did you have to spend time shortening words to just post a comment? Pretty sure that every Twitter user has at some point had to deal with these issues.
With Bigg Tweets app you are being unshackled from this constraint. Now, you can either choose to post your long tweets split into multiple tweets or tweet it as an image.