A free program for Android, by MalakStudio.

What is Multitasking: Floating Apps Split View Multiple?

This is a tool that allows you to open multiple applications on your phone at the same time. It is the best and most powerful tool for multitasking, and it is designed to be very easy to use. All you need to do is download the app and start using it.

You can see all the applications that you have opened on your phone at the same time. You can open as many apps as you want and you can see all of them individually.