Little Snitch - Little Snitch is a firewall application that monitors and controls outbound internet traffic.
AppManager - best Android Apps for tablet and phone
NetGuard - NetGuard
Workday - Workday is an on‑demand financial management and human capital management software solution.
Portmaster - Is a Privacy Modular Privacy App which includes a "DNS over TLS" feature as well as an "Application Firewall".
Glextor AppManager - Glextor AppManager - application organizer, manager, launcher for Android.