Integrating Mobify is not as simple as adding a module. There's no getting around it: you have to hack your theme. Here are the instructions on Mobifying your Drupal site.
- Login or sign up for https://cloud.mobify.com/login/
- Mobify your site. https://support.mobify.com/customer/portal/articles/747219-getting-started-with-mobify-studio has good instructions on that.
- Publish your Mobified site.
- On your project page, copy the Mobify Tag
- In your theme's code, paste the tag just after the tag. In Drupal 6 or earlier, do this in page.tpl.php. In Drupal 7, do this in html.tpl.php.
- Clear your site's cache.