I have been investigating the idea of Moodle mobile remote addons, i.e. 3rd party plugins that download to the mobile app.
I can see that this is something the certificate plugin should do but when I install it I get the standard error message about "Contact the site administrator and tell them you want to use this activity ....".
I have tried it with the Moodle app on multiple devices and with Moodle installed as 3.1 and 3.2 but without success.
Is there a demo site that would work with the mobile version or any other plugin that would demonstrate what happens when a remote addon is downloaded and runs.