PkgUtils is basically related to Package and Package Manager.
Latest Version: 5.1
Released: Dec 21, 2019
Last Updated: November 12,2020
https://sunny.byteisticuser.me/2019/12/21/pkgutils-an-extension-to-work-with-packages/
Aix:
com.sunny.PkgUtils_v5.1.aix (16.3 KB)
Hope it helps!
Nice extension @vknow360 
This extension is now available in Extension Store
Search “Pkg Utils” and Import it 
this extension warning and rejected to update in console account permissions 
`
android.permission.REQUEST_INSTALL_PACKAGES
`
and how to solve this problem… 
You can remove the permission from manifest if you don’t need feature to install apps.
Hello, I want to check in my app is A specified app is installed or not in users device, I used your extension but it didn’t work with Android 11+, worked in Android 10 or less…
How to check whether the app is installed, if installed close my application.
Thank you
Always try yourself first before you ask your question in the community. Don’t forget to show what have you tried in your topic so others could better understand what are you looking for and help in fixing problems with your approach.
And your blocks?