Writefull is a light-weight app that uses data from Google Books (5+ million books) and the Web to give you language support. All you need to do is select a chunk from your text, activate the Writefull popover, and choose one of its options:
Check the number of results
Not sure if what you’ve written is correct? Writefull tells you how often your selected text is found in the database.
If the number is low, this means it has not been used by many writers before you, and you might want to change it into something else. If the number is high, your selected text is good as it is!
Compare the number of results
Sometimes you’re doubting between two or more ways of writing something.
Writefull allows you to enter two chunks and directly compare their number of results. This shows you which one is better for you to use.
See examples in context
Even if you know your text is correct, you may want to see how it is used in context. Writefull shows examples of your selected text in the Wikipedia database.
Find words in context
Writefull also shows you which words are used most often in a context you have selected.
This function is useful when you are not sure how to fill a gap -- for example, which preposition to use, or which adjectives to use before a certain noun.
Find synonyms in context
What if you want to say something using different words? Writefull gives you a list of the most frequently used synonyms in the text you have selected.
This comes in handy when you want to know if there is a more appropriate word for you to use in to your particular context.