No idea, just answering your post. You'll need to read both copies to see any differences. And it will change again this Monday 4th June, when learner drivers in England, Scotland and Wales are allowed on motorways, with a qualified driving instructor and duel controls. https://www.gov.uk/government/news/learner-drivers-will-be-allowed-on-motorways-from-2018
Road's are so packed I can't take my eyes of road to look at signs. Crazy busy roads these days.
Who said anything about a free app? Yes, it's £4.99 but think about what you're getting for that. The questions in the app are literally word for word the same as in the actual theory test, making it next to impossible to fail if you just use the app for a few hours.
Just curious why it would be different for NI? I last read it when I passed my test 30+ years ago :o