Yes! You can complete the online courses using your mobile phone or tablet. Follow the instructions below to install and set up the app. Once it's set up, you can even complete courses offline. (Note that webinars need to work on a desktop computer, rather than a mobile device).
Once you have the app set up, you are able to download courses, and work on them offline.
Note, however, that the other features of the training site (discussions, webinars) are only available via the website. This means you still need access to a computer to complete some of the required activities.