It is a language. It has its own grammar, its own sound system, and a standardised spelling published by the Jamaican Language Unit at the University of the West Indies at Mona. The New Testament exists in it in full, as Di Jamiekan Nyuu Testiment.
The grammar test settles it faster than the politics do. Patois marks tense and aspect in front of the verb, has pronouns that do not change for case, and does without the verb “to be” in three separate ways. None of that is English with the endings knocked off.
The popular spelling, because that is what you will meet in messages, in music and in captions. The Cassidy-JLU system is taught as something to recognise, and you can switch the display into it whenever you want to see how a word is written properly.
No. It measures what it can measure and shows you that. It does not score authenticity, and it will return nothing at all rather than invent a reading it cannot support.
Not for the free course. No account, no sign-in, nothing to remember. An account exists only if you buy something.
Yes. The course is one file and it runs with the plane on. The AI tutor is the only part that needs a connection.
It stays on your device, which is where it always was. A lifetime purchase does not lapse. Cancel the tutor and you keep the course.
The first parish, all the way to the end of it. Every pronunciation page, the Mouth Lab, the pronunciation check, the games. A whole parish rather than a demo that stops halfway. The rest is here.
Published work, cited on the page where it is used, with the year each source describes. Cassidy did his fieldwork in the 1950s. A page leaning on him says so rather than passing it off as current. The full list is here.