If, as the top post wisely indicates, you are in search of results and real impact you should carefully consider which app really helps you get things done.
Lots of hype and lots of features in an app is a recipe for lots of wasted time.
For making a zettelkasten with the minimum of hassle and friction check out https://scrapbox.io
Nota, inc. is a profitable web startup with an office in Kyoto. Nota's https://gyazo.com screenshot app is used by nearly 10 million people every month and its new organized-for-you note service https://scrapbox.io is rapidly growing in popularity among developers, startups, and researchers.
We're looking for a rails/JS engineer to join our Kyoto office or work remotely but from the japan time zone. We have a casual and friendly work atmosphere with our CEO having lived in silicon valley for several years. Some japanese language is useful but not absolutely required!
Lots of hype and lots of features in an app is a recipe for lots of wasted time.
For making a zettelkasten with the minimum of hassle and friction check out https://scrapbox.io