Android: Evernote has given its Android app a complete makeover, and the updates are not only visually appealing but also make using the note-taking app on tiny devices much easier.
The new home screen features large buttons for creating different types of notes, easy access to your account (via the username at the top), and options to take you directly to all of your notes, notebooks, and notes by tags or places. The best thing about it is you can quickly jump back to the home screen by swiping left or right or tapping the elephant. Horizontal swiping now quickly moves you through notes too.
A new action bar at the bottom of the app gives you controls based on the screen you're on. In the notes and notebook lists, for example, you've got notes sorting options and different notes views.
Evernote now adds a place to each note you make—if you have location services turned on for your device. You can then see your notes on a map, which could be pretty handy for a lot of reasons.
There are several other useful enhancements, like the navigation disappearing when you start scrolling in a note to give you a full-screen reading view.
Download Evernote on Google Play or update it to start enjoying the impressive update today.
Evernote | Google Play

Android:
Mac: The plain text editor Simplenote is an excellent way to take notes and sync them across a variety of devices. Metanota is a simple but visually appealing Mac client that makes taking and organizing notes easy.
iPad: If you're a sketcher, note-taker, or all-around paper lover who happens to own an iPad, go download Paper from FiftyThree right now. This beautiful app gives you digital notebooks to capture all your ideas quickly and intuitively. And it's free.
OS X: We're huge fans of Notational Velocity as a syncing note-taker, and nvALT beefs it up even more with things like a widescreen-optimized view, custom color schemes, a menu bar-only mode, and lots more.