question on installing and removing apps on Android

[Santuzzo]

Hi,

I have an Android smartphone (Samsung), and I was wondering if installing apps and removing/uninstalling them will leave any traces that may slow down my phone over time like uninstalled software would leave registry keys on a PC?
Is that similar on a smartphone or do apps get completely removed when uninstalled from a smartphone?
thanks!

 

[tarras33]

*#*#7780#*#*

This code can be used for a factory data reset. It'll remove following things:

* Google account settings stored in your phone
* System and application data and settings
* Downloaded applications
It'll NOT remove:

* Current system software and bundled applications
* SD card files e.g. photos, music files, etc.
PS: Once you give this code, you get a prompt screen asking you to click on "Reset phone" button. So you get a chance to cancel your operation.
https://mobilespecs.net/phone/codes/Samsung/Samsung_Galaxy_S_I9000.html

 

[veerrie]

There are leftover files like cache and cookies still on the phone when trying to delete an app on the phone. Sometimes, a reboot will get rid of the junk files but it depends. To complete uninstall an app, here is a nice tutorial about it:https://www.fonemoz.com/delete-apps-on-android.html

 

[richardwilson]

Sometimes you uninstalled an app, its cache still takes place in the background. You should have to delete that root folder and then restart your smartphone.