Grammatica is a very powerful bilingual grammar and spelling checker for Microsoft Word and Windows. It includes French and/or English grammar and spell checking (with grammar explanations and suggested corrections). Its dictionary includes more than 500,000 entries in French and more than 275,000 entries in English. Grammatica analyzes the function of words in a phrase (part of speech and grammatical links; homophones and homographs; synonyms and definitions in French). Grammatica can also open Word, HTML, and RTF documents. A customizable grammatical lexicon is also available.

This latest version displays more suggestions when it finds a spelling mistake.