Why it worked
The video effectively uses a common pain point (low phone storage) and presents a clear, visual solution with a named app. The rapid decrease in storage shown creates a compelling 'before and after' effect, making the app seem highly effective and desirable.
Summary
The video shows a person celebrating clearing up their iPhone storage using an app called Swipewipe. The storage usage on the iPhone dramatically decreases throughout the clip, visually demonstrating the app's effectiveness.