It's "ok" – Learn English grammar tenses Review

The app is "ok" for what it is. It's nothing more than any other free apps of this kind. What I don't like is the fact that it's been developed to lure a user to buy the same app multiple times if you want to install it on your second device. However, there is the way to activate your purchased app on the second device but /--? it's hard to find. :( No, I don't think I will buy anything from this developer.
Review by SergueiK on Learn English grammar tenses.