Is there a way to force visitors to use a mobile device to view my bubble.is site?
Well first you gotta track 'em down IRL Bring something intimidating, I like crowbars but golf clubs work well too. Get a ski mask - black is the only color acceptable in this situation - colors like baby blue or purple just doesn’t get your message across…
Seems like I’m in a dark mood today. Sorry.
No, there isn’t. If you’ve got a URL associated with your application people’ll be able to get there on whatever device they choose to.
You could build an application that only works on mobile - try setting the page to “mobile” version and only designing for mobile. You can also use phonegap to wrap it up into native packages, and distribute the application through App Store and Google Play only, maybe hiding the non-mobile version behind a landing page online or something like that.