A good example of this is a new jailbreak-tweak FreeRAMUnderTimeX. This tweak displays the amount of free RAM under the time in the status bar of the iPhone X.
iOS automatically adjusts the use of RAM to achieve the best performance. The iPhone X has 3GB of RAM, so it’s almost impossible to use it all. Nevertheless, it still does not hurt to know how much RAM is used at the moment.
The RAM indicator is displayed right under the time and perfectly matches with other status bar icons.
This tweak is suitable for advanced users who like to monitor the system. In addition, so you will know why the device starts to work more slowly at different times.
You do not need to configure any options, just install FreeRAMUnderTimeX from Cydia. If you want to disable the tweak, you will have to uninstall it.
If you want to install FreeRAMUnderTimeX on your smartphone, you can download it free of charge from the BigBoss repository. It only supports iPhone X.