The app is designed to work with or without root access. Root access is recommended on Android 7 and later, because Android 7 adds some fairly draconian restrictions on the ability for a user to see what is running on his/her device.
SystemPanel will not use root by default, but you can enable it on the “General” settings page. Version 2 is greatly expanding support for root users, with features such as enabling/disabling apps, permissions, and individual services.
SystemPanel 2 is not being distributed as an upgrade to the original SystemPanel. You can even have both versions on your device at the same time. Version 2 no longer uses a pay-to-unlock-all-features revenue model. All features are free. It has native ads, and you can pay a couple of bucks to remove them permanently. The ads are intended to blend into the UI so they aren’t distracting, they don’t animate, and they don’t annoy. The ads are marked with “AD” to avoid confusion.
SystemPanel 2 v2.0.b10 Plus App