You can check them in the following way.
<Desktop>
1. The “Created” tag is given to created Notes.
2. The “Updated” tag is given to an updated Notes.
3. The number of created or updated Notes in each Folder is displayed on the All Folders area on the left side.
<Mobile>
1. The “Created” tag is given to created Notes.
2. The “Updated” tag is given to an updated Notes.
3. When you tap “Home”, the number of created or updated Notes in each Folder is displayed.