Did you know that the line at the bottom of your iPhone's screen has a purpose? It might look useless at all, but in reality, it's a useful time-saver when you switch between different apps.

iPhone owners have been amazed to discover a hidden function of this button recently. This feature, introduced with the iPhone X in 2017, replaced the physical home button to provide more screen space. 

While users interact with this line countless times daily to unlock their phones, it has a lesser-known secondary use that you might haven't heard of yet.

The Common Use: Unlocking and App Switching

The primary function of the line at the bottom of the screen is to unlock the iPhone by swiping up from the bottom. 

According to The Sun, users also utilize this gesture to access the app switcher by swiping up about a quarter of the way to reveal a carousel of previously used apps.

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The Hidden Function: Quick App Switching

Recently, social media users have been highlighting an even quicker method for switching between apps using the bottom line. 

Instead of waiting for the app carousel, you can instantly return to the last app you used with a simple gesture. This revelation has left many iPhone owners surprised and pleased with the newfound efficiency.

How to Use the Quick App Switch

To use this time-saving feature, ensure your iPhone is unlocked and you are within an app. Then, slide your finger along the line from left to right. This action will immediately take you to the last app you used. 

This method is perfect for quickly toggling between two apps without the need to go through the carousel.

iPhone Users Are Surprised About This Feature

The discovery of this quick app switch has generated a lot of excitement among iPhone users. As spotted by The Sun, comments on social media range from astonishment to gratitude, as many were unaware of this handy feature. 

One user exclaimed, "How did I not know this?" while another mentioned, "I'm new to iPhone thanks for this."

When to Use the Carousel

While the quick switch is excellent for hopping back to the last used app, the traditional method of swiping up to access the carousel remains the best option when you need to navigate to an app much further back in your history.

The iPhone's bottom line is more than just a tool for unlocking and basic app switching. By sliding left to right, users can quickly return to their last app, making multitasking more efficient. 

This hidden functionality showcases the thoughtful design behind the iPhone's user interface, continually providing users with new ways to enhance their experience.

For more iPhone hacks, check MSN's latest report here. In the meantime, let's know the biggest rumored features that might arrive in the iPhone 16 Pro Max. The hyped smartphone model is something that everyone has been waiting for.

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