The Samsung Galaxy S4 freeze app feature comes in handy when you don’t want pre-installed apps to launch and use up memory. Many of the apps included with the phone cannot be uninstalled without root access. You can still disable them though. The feature isn’t available for all apps, but you can freeze most of them using these steps.
Note: Be sure you know what you’re doing with these steps. Some apps may be dependent on others. You may end up with some collateral damage to another app if you choose the wrong selection. So be sure you know what you’re disabling here. You should be able to unfreeze an app if you have to though. So don’t worry too much.
1. From the Home screen, select Apps, then choose Settings. Alternately, you could select Menu > Settings.
2. Choose the More option in the upper-right corner.
3. Tap Application manager.
4. Swipe to the All selection.
5. Select the app you wish to freeze.
6. Select the Disable button.
You’re done! Repeat these steps for any other annoying apps you want to take out.
I recommend you freeze apps on the Galaxy S4 when a given app you never use runs in the background constantly. You can have a look at what’s running in the background from the Application manager under the Running heading.