Hi @Jeshailess, welcome to the forum.
It depends on how old the version is of Hopscotch on their iPads.
There are some old versions where logging out was yet to exist, but the feature was introduced a while ago. Most versions running Hopscotch should have the logout feature on it.
In the current version of Hopscotch, there are three grey dots on the top right of the profile. You would then click that and then be led to options, one of them being log out.
However, it might not look the same with an old version. Is it possible for you to add a screenshot of your profile to your post? It would be helpful so we could see the version of Hopscotch you are running. You can do that by clicking the button in the top tab and then selecting a picture.
You can always email the Hopscotch Team at firstname.lastname@example.org if you are still having trouble with logging out.