Does your mobile speed became slow ?
Is your battery life is short?
Here is 5 most important apps to speed up and managing your mobile memory usage and cleaning unnecessary files from your storage 
Download link ▪https://play.google.com/store/apps/details?id=com.estrongs.android.pop
4▪Gallery doctor
This is an awesome app. We all have lots of photos in our gallery. This app (gallery doctor) find all the duplicate photos you have in your gallery this app classify and categories all of your photos. And does not delete photos without your consent
Download link ▪ https://play.google.com/store/apps/details?id=com.flayvr.doctor
# 5▪battery doctor
This app is the doctor of your battery. It helps your mobile battery to live longer and have best possible use of your mobile Battery. It will reduce mobile brightness according to its use. It will also turn off all the necessary apps which is running on background.
It has an advance option which will turn off all the data with the app axcept incoming or out going calls and messages
Download link ▪ https://play.google.com/store/apps/details?id=com.ijinshan.kbatterydoctor_en