Most note takers in Android are heavy with many options. Keep is a very light note keeper by Google. You can quickly make notes and access them from any of your devices. Keep is just so simple and easy to handle. Once you tap on Keep, you can make voice notes or photo notes (with your camera) or even turn your notes into a checklist by adding check boxes. You also have options to color code your notes or just swipe them into an archive, for future reference.
The best part of this handy app is that you can use your notes from anywhere – they are safely stored in the cloud and available on the web at http://drive.google.com/keep
This one is surely for keep !