It's important to log out of Edmodo every time you are done using your account, particularly if you are using a shared device like a class set of iPads or the PCs in the Computer Lab at school.
Here are instructions for logging out of Edmodo on different devices:
Logout on a Computer and the Full Web Version
To logout when using Edmodo on the computer, first click on the downward arrow icon 
next to your profile picture in the upper right-hand corner of the page. Then, from the dropdown menu, choose "Logout." Once logged out, quit the browser you are using.
To logout when using the Edmodo app for your iOS device, first click "More" on the bottom navigation bar. Then, from the bottom of the "More" menu, choose "Logout." Finally, click "Log Out" from the pop-up box to complete the process.
To logout when using the Edmodo app for your Android device, first click "More" on the bottom navigation bar. Then, from the bottom of the "More" menu, choose "Sign Out." Finally, click "OK" from the pop-up box to complete the process.
Logout when using the Mobile site
To logout when using the mobile version of the site through your device's web browser, first click on the three horizontal lines 
in the upper left-hand corner to open the menu. Then, from the bottom of the menu, choose "Logout." Once logged out, quit the browser you are using.
