Official Arcai.com NetCut requires root access for its core functionality of blocking or limiting other devices on a network, making "no root" versions largely ineffective or misleading. While unauthorized APKs promising "no root" functionality exist, authentic network management requires rooting or utilizing alternative router administration tools. For a tutorial on installing and using the legitimate, rooted version, see this YouTube tutorial. 

NetSpot: Widely regarded for Wi-Fi analysis and troubleshooting, offering a user-friendly interface for site surveys. netcut pro apk no root top

Scan Your Network: Tap the scan button to populate a list of all active users. Official Arcai

Conclusion

1. VPN Configuration: The app configures a local VPN interface on the device. This doesn't mean connecting to an external VPN server but rather setting up a gateway through which all the device's network traffic passes.
2. Traffic Control: Once the VPN interface is set up, NetCut Pro can inspect and control the traffic of other apps. This is achieved through standard Android APIs and doesn't require system-level access.