As we move though the book, weâre going to meet some relatively complex code for recreating native effects and behaviors. Thanks to some (fairly) standard hooks and APIs, however, there are a few tricks we can employ to add a bit of pizzazz to our apps without having to do much work at all. 3.1. Nifty Links For security reasons, mobile web applications are sandboxed away from many built-in features of the mobile device; for example, unlike native apps, theyâre not able to retrieve a list of a userâs contacts, or take a photo with the deviceâs camera (yet).