They fixed the issue below. Some of the features from the iOS version are not yet in the Android, but it's still a decent app. I hope they keep working on it. If this is the same app, I used it on iOS years ago and it was great. My only criticism was that many of the examples were inappropriate for real Japanese conversations and there was no note on whether certain kanji were rare or common. I was really hoping this was the same app. Sadly, I install the app and when I open it I get an error that the app has stopped. Tried uninstalling and reinstalling to no avail. If I can get the app to work I would give it 5 stars.