Overall, I like this app a lot. I never really had any interest in Markdown, but lately I’ve been wanting to move away from proprietary systems like Evernote and OneNote for storing information, and markdown fits the bill nicely.
Quiver is good looking, clean, responsive.
The concept of having different cells (really text blocks) within a document, each being able to be a different “type” of data (text, markdown, code, LaTex, diagram) is both clever and useful in practice, allowing you to produce some pretty complex documents. Combine that with attachments, and you have a very flexible system that can easily grow beyond being just a “programmer’s” notebook.
Developer is responsive; I found a small bug early on, opened an issue on the Git page, and received a response in less than an hour.
Cons:
* No iOS version, although the developer did mention he is working on one, so currently no easy way to be mobile
* Storing the notes as JSON files, and in an OS X package, means there is no chance of cross-platfrom work. If like me you are stuck on a Windows PC for a lot of your work, you can’t open your Quiver library, not even to simply read data out of it. You’ll need to export the library in HTML or PDF, and of course you can’t add notes to the library until you’re at your Mac.
Whether the extra flexibility offered by Quiver’s method is worth the lack of cross-platform access depends a lot on your situation of course. If you don’t need mobile (yet) or PC access to your notes, this is no-brainer: Quiver is definitely the most overall powerful markdown editor I’ve used or even seen, so far.