Photoswipe provides your visitors with a familiar and intuitive interface allowing them to interact with images on your mobile website. It's specialy integraged as template for the JoomlaWorks awesome plugin: Simple Image Gallery
Template can be installed very simple from Joomla administration as every other extension. You just need to upload the file and then go to the plugin parameters to select the Photoswipe template.
The demo is in the Gallery tab.
Based on the well known PhotoSwipe JS gallery.