User experience is crucial for the initial traction of users. When your early adopters use the app for the first time, they will have a better impression, which creates trust and increases retention. App animation will also provide interactive feedback for the users so that they know what to do or take action based on very gentle visual hints.
Native apps used to have an advantage over web-based hybrid apps because of animation performance. However, frameworks like Ionic and Angular have closed the gap in performance a lot in the recent years. Web animation is also easier to learn and code since many frontend developers are already familiar with JavaScript and CSS.
In this chapter, you will learn how to do basic animation using video and CSS. Then, you will start utilizing physics-based animation to create interesting interactivity. Moreover, you could even bind the gesture frame by frame so that your animation happens instantly during a swipe event.