Hi all, I just wanted to tell you there’s a (I think new) app, and that it’s awesome. It has grammar from pre-level N5 all the way up to N1, it’s divided in nice lessons and it has an SRS. There’s also the possibility to ask native speakers questions about grammar points and they’re usually quick to respond.
And, if this wasn’t enough, the app offers almost everything for free, but for people who want the SRS and some other nice features, membership is very fairly priced: lifetime is just £27.99! A refreshing change from a lot of other very greedy services that offer much less and cost much more!