Bunpro is mainly a web-app so it should be included in the main Readme and not just the mobile one. I, for example only use it at my laptop.
Sakubi is a grammar primer that I found very useful.
Cure Dolly is a youtuber that has a different approach to teaching the first steps of japanese. This helped me a lot at the beginning and It would be great to include her.
EDIT:
Additionally there is also https://www.renshuu.org/ which is a web-app and app that combines a lot of stuff (Learning Hiragana, Katakana, Kanji, Vocab, Grammar, Teaching Games, Text Analyser...) but I'm not sure where it fit's the most as it would fit into multiple categories.
Hello! 😄
Some things that came to my mind:
EDIT: Additionally there is also https://www.renshuu.org/ which is a web-app and app that combines a lot of stuff (Learning Hiragana, Katakana, Kanji, Vocab, Grammar, Teaching Games, Text Analyser...) but I'm not sure where it fit's the most as it would fit into multiple categories.