Although grammar checkers have largely been concentrated on ensuring grammatical writing, majority of them are modelled after native writers, neglecting the needs of non-native language users. Much research have attempted to tailor grammar checkers to the needs of non-native language users. Granska, a Swedish grammar checker, has been greatly worked upon by numerous researchers in the investigation of grammar checking properties for foreign language learners. The Universidad Nacional de Educación a Distancia has a computerised grammar checker for native Spanish speakers of EFL to help identify and correct grammatical mistakes without feedback from teachers.