char280 - When 140 char isn't enough. Tweet up to 280 characters.
Word Counter - A simple, beautiful word and character counter
WordCounter.net - Count words, sentences, paragraphs etc.
TapMeasure - Smart Augmented Reality Measurement
Tall Tweets - Tall Tweets, now with support for 280 characters
Convert Case - Easily convert text between different cases: lower case, UPPER CASE, Sentence case and Capitalized...