Clean, simple, lightweightCons:
Almost too simple
Simplenote truly was the most beautiful app of its day. It completely transformed what productivity was for me. There aren't many apps you expect to still be using ten years later.flyinsaucier has used this product for one year.
Simple, Fast, Multi-platform, Markdown supportCons:
Tagging system less functional than folders
Simplenote is a great basic note-taking app. Sometimes the more full-featured note-taking apps are more hassle than they're worth when you just need to jot down a quick idea.
The markdown support is particularly nice, allowing for quick and easy formatting when you do need it.
The notes quickly sync across mobile apps and the web app, which means your notes are available when you need them. I've used this app for a few years now and it's my go-to note app.Seth Hawkins has used this product for one year.