When comparing Markdown Editor Chrome App vs Gingko, the Slant community recommends Gingko for most people. In the question“What are the best Markdown editors for OS X?” Gingko is ranked 28th while Markdown Editor Chrome App is ranked 41st.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Tiny but powerful
Runs inside chrome as a plugin. It's got a pretty small footprint but does not lose any features.
Pro You can customize colors
Pro Allows focusing on one piece of information at a time
Since Gingko documents are "trees", they are always organized on the go. And since everything is written in cards, it is possible to focus on one chunk of content at a time.
Pro Easy to overview
Despite the complexity of the tree structure, it's always clear where you are, and how to quickly add your thoughts.
Pro Markdown support
All formatting is done via Markdown.
Pro Non-linear
Non-linear notetaking allows you more flexibility, freedom and creativity.
Cons
Con Unavailable for people who don't have Chrome installed
Since it's a Chrome plugin, you need to have Chrome or Chromium installed to use it.
Con Limited free version
The free version is limited to 100 cards and 10 documents. Depending on how you use it, this might not be enough.