As admin, enable "Mobile services": Plugins ► Web Services ► Mobile Create a new standard user account, using the mobile app connect with that user to the site. Now, access to Moodle web with the user account, go to your preferences -> change password Change your password, and ensure that the "Sign out of other devices.." option is set Go back to the Mobile app, try to browse (or do a Pull down to refresh PTR to avoid cache), you will be logged out (do not enter your credentials again yet) Go back to the web site, go again to change your password, you shouldn't see now the "sign up of other devices" option Access with the new password using the Mobile app Go back to the web site, change your password but unchecking the "Sign out of other devices.." option Go back to the app, you should be able to browse and do PTR normally in the app Now, as admin, browse the users and edit the profile of the standard user You should see the "sign out from other devices option", the option is "disabled", but if you enter a new passowd it will be get enabled (once you change the focus of the field) At the right of the "sign out .." option you will see the list of services of the user, the only one there should be the Moodle mobile web service Enter a new password for the user Go back to the app, try to browse or do a PTR to avoid cache, you should be logged out Access again using your new password in the mobile app TEST the global setting now: Now, as admin in the Moodle site, enable the security preference: passwordchangetokendeletion Access now to the Moodle site as the user, go to change your password, you shouldn't see the "sign out of other devices" checkbox Enter a new password Go back to the mobile app, try to browse, you should be logged out.