how to switch between app in android

While I am using my android phone, it is not convenient to switch between app in android. I must long press a button then click on app running.
I look for an app in google play. And I finally find and choose Kakudo lite.




Some shot screens:

 

Some features:

- Swipe from the left or right to cycle through recent open apps
- Swipe from the bottom to open your Favorite Apps Drawer
- Add your most used apps/toggles to the Favorite Apps Drawer (Limited to 6)
- Choose to start on boot
- Toggles indicate whether they are on/off
- Drag and Drop to reorder/remove apps/toggles from the Favorite Apps Drawer (Android Honeycomb and Above)
- Favorite Apps Drawer ergonomically design for easier use
- Minimal RAM/CPU footprint and closes fully when turned off
- Change sensitivity and size of swipe detection areas
- Adjust Icon size to best suit your preferences
-Languages Supported:
English, Spanish, German, French, Italian, Russian, Hungarian, Chinese, Portuguese, Polish, Romanian.
You can download at: https://play.google.com/store/apps/details?id=com.acelaapps.kakudolite

 Cheer!