How To Make An Application A System App

A System application are application that are come with the rom of your phone,  system apps are different from apps on internal memory.

The system app are not easily uninstallable and can be found on system/app directory,  example of application on system app are your phone dialer,  sms, contact,  setting, gallery, etc.  So,  am about to show you 2 ways to move the user app "app on internal or sdcard" to system app.

WHY DO I NEED TO MAKE APP SYSTEM APP? it's not compulsory but it's advisable to move an anti theft application and all your xposed framework application to system app. Anti theft will not be easily uninstallable when on system app and xposed on system app will give better permission for them.

You can move an application to system app through a single application called system app mover or use any file manager that can access root file.

File manager: copy the file off the application you want to move to SD card eg Facebook.apk for Facebook and copy it to system/app.  After pasting it,  press menu and change the permission as seen on the picture below, then save it and you are good to go.

Now goto your apps and try Uninstaller the application,  you will see that's is impossible again. 

Know When There Is Sim Change On Your Android

It's adviceabl to install an anti theft to a smartphone before it get lost, missing or stolen.  Anti theft help you to track your phone till you find it and it's important to have it install before your phone get missing.

The application am about to share now is not a full anti theft but a one purpose anti theft that only help you to track whenever there is Sim Change On Your Android. The beauty of the application is that it send a message with the phone number from the new inserted Sim card to the number you registered with the application.

SIM CARD CHANGE ALERT is the one am going to recommend for you to use for this task.  I have test many application that did the same function and I finally find that Sim card change alert is the best for the task we are talking about.  You can download it from play store or use any market you have on your phone.

NOTE: I will recommend you to make the application as a system app when you installed it so that it would be easy to Uninstalled it.