For me, this app is without a doubt the best Japanese app available! It is properly explained and it goes into detail at the Japanese rules, teaches properly. This way you learn the right Japanese.
One thing that I dont like is its subscription method. You need to pay monthly fees (or yearly) if you want to continue your studies. I dont mind paying for the other courses but this payment method makes me feel like Im signing some kind of contract. If I pay for something, then, I want to know that I know the item afterwards. What should had been down is to ask users to pay for each different level or pay for the whole package right away at a higher price. I dont want to subscribe, I want to gain access to what is already available with a one, direct payment. And if Im hungry for more, I will be back. More freedom of payments please!!
Glauben about Mirai Japanese, v7.4.2