Moodle for mobile
From MoodleDocs
Moodle can be used on a mobile device by downloading a native app, such as the Mobile app (the official Moodle mobile app for iPhone). See Mobile Moodle FAQ for links to more mobile apps.
An administrator can also set a theme for mobile devices in Settings > Site administration > Appearance > Themes > Theme selector. The MyMobile theme is especially designed for mobile devices.