You are not getting my point clearly.
I have installed one app named app manager from fdroid (i have attached screenshot as well)
My mobile isnt rooted though this app manager( installed from fdroid) is making trouble for me …
As its a user installed app(by me)
It could be removed by
Settings -apps- appname -uninstall
But when i tried to uninstall The app it wont get deleted from my phone (normally it should be removed from phone)
Anothor possibility is there if any app has administative rights (which can be granted by user, but this app dont have any admin rights)
Second posibilty is if my phone is rooted and this app instlled as system app but my phone is not rooted ever.
So, my question was is there posibility remaining ?
Which might i havnt tried.