Both indicate content is loading, but they create noticeably different perceptions of speed.
Loading Spinners
A generic spinner tells users something is happening, but gives no indication of what's coming or how much longer it'll take.
Skeleton Screens
A skeleton screen shows a rough outline of the content's eventual layout — gray boxes where images and text will appear — giving users a sense of structure and progress even before content fully loads.
Why Perception Matters
Studies suggest skeleton screens feel faster to users than spinners, even when the actual load time is identical, since they reduce the feeling of uncertain waiting.
Español
Deutsch