First of all, I want to say thank you for your work on such a wonderful app.
But I think you can do it even more better. I currently use Holland version of Drops. And there is a drawback that force me to use dictionary after every theme: the lack of definite articles.
There two definite articles in Dutch: de and het. Whether one should use de or het depends on the gender of the noun. So, I have to check which article to use on my own, which is not very convenient.
Also, I noticed that articles already exist in new topics (which make up less than 10% of the total).
Do you have any plans for further improvements of articles in Dutch?