Yes LingoDeer seems to be a nice learning app. I linked to the tofugu reviews in the following post, in case you are interested:
Another resource that may interests you could be kanshudo. They as well focus on different aspects of learning and engaging with Japanese including reading corner and stroke order teachings.
You can access the program for free (I think you don’t necessarily need an account… but your progress can’t be saved without an account).
To go through their different studying tracks (beginner / intermediate / advance) you’ll need to subscribe. Again, you can try out the first couple of lessons for free though, to see if it suits your learning style.