Roam Research is highly praised for its ability to revolutionize note-taking with features like bi-directional links and daily notes, making it ideal for creative thinkers. Users appreciate its flexibility and the supportive community, though some note a steep learning curve and desire improvements in mobile experience and UI design. Despite these critiques, many find it indispensable for organizing thoughts and ideas, often returning to it after trying other tools. The cost is seen as justified by those who value its unique capabilities.
Flutter
Flutter
This product is closest to what Niklas Luhmann did by hand. It provided a rich functionality that suits various of needs. One suggestion is it can limit the words of each note to the length human write on a 6x4 card, like the non-digital ZettelKasten, will make the note more atomic and force user to make more links