Progressive Web Applications (PWA) rock! These applications are hosted like regular web applications but they offer features that are traditionally available only to native mobile applications. The PWA can be installed to the home screen of the mobile device and support offline functions.
The programming model for applications that work with Watson Content Hub make it a piece of cake to add PWA support to your SPA.
Check out the tutorial Converting the Oslo sample site to a Progressive Web Application for step-by-step instructions on how to convert the sample Oslo site into a PWA and install it to the home screen.