In-Built apps

[Asif2000]

To provide a booster apps as a system user apps. Which may helpful for ram problem fix. Just think about it. Provide them in 1 month. 

[Jonas]

Hi @Asif2000,

There are plenty of applications like this available in the Google Play store. Most of them however just deletes the cached data on your device and close down open applications, so it's not some magic that occurs that you can't do on your own.

I hope that helps!

[main4258]

Updates apps

Sony experia z1

Model number 6903

[Jonas]

Hi @main4258, welcome to our forum!

I'm not quite sure that I understand your question, would it be possible for you to elaborate a bit?

Thank you!