It stops updating at lesson 160. Its been stuck since September 2014.
The subscription says that you can expect a new chapter every month but mirai hasnt be able to commit. They should at least tell us why there is a delay.
What that said. It costs 2.99 a month for subscription and with that much you have access to all 160 lessons. The app requires you to pass all the quizzes before it lets you progess.
But other than that, below are my thoughts on the app
Ive never had the "language gene" so for all of my life I only spoke English. I tried to learn Chinese and Spanish from school, but languages just kept disappearing from my memory.
I was sure that Id never learn a second language until on a whim I tried Mirai Japanese. Wow. Within minutes I had learned a handful if words. Mind you, I am the type of person that can hear a word and repeat it 100 times and still forget it.
I applaud the Mirai Japanese method for being able to actually teach me something and remember it... I just wish they would continue....
Virote328 about Mirai Japanese, v7.4.2