One of Samsung Galaxy’s best-kept secrets is the Secure Folder, a hidden space protected by a PIN, password, or biometric login to store private photos, files, and apps.

“It’s like having a mini safe on your phone,” says user Sarah Lee. Smartphones come packed with useful features that often go unnoticed.

Whether you use an iPhone, Android, or Samsung device, your phone likely hides powerful functions.

iPhone users, for instance, can enable the “Back Tap” feature, which allows shortcuts by tapping the back of the phone.

It’s great for quick tasks like turning on the flashlight or taking a screenshot. To activate it, go to Settings > Accessibility > Touch > Back Tap. Android users can benefit from the Split Screen feature, which lets you run two apps at once—perfect for multitasking. Just swipe up to open the app drawer, select your first app, then choose “Split Screen” to add another. While not all apps support it, it’s a major productivity booster when they do.