I have been using Google Keep app for 4 months. The concept of the app is good. It is like a stick pad. You can write the things, which you have to do in this. You can add colors to the notes. You can pin the things which are more important. If you’d like to add a photo to a particular note, you can do it that too. Also, this app does not occupy much space and works offline. When your mobile is connected to a network, the notes get synced with your Gmail account. Even if your phone is dead, you can access the notes on your desktop. This app is far better than many other sticky note apps, as it is accessible on the desktop.