Plunk lets you easily put together fun tests for touch screen targets on mobile devices. See where users are tapping on your mobile pages, then measure the success of your design or see if it's littered with bad apples.
Optimize your campaigns for mobile users, and read our new research about how people consume email on mobile devices. Mobile email usage is skyrocketing, and it’s more important than ever to optimize newsletter content for mobile users. MailChimp’s features make it easy to create campaigns that your subscribers can read on any device.