Descriptions : NetGuard offers simple and advanced ways to block access to the Internet - no rooting required. Applications and addresses can be accessed via Wi-Fi and / or a mobile connection.
PROPERTIES:
+ Easy to use
+ No root required
+ 100% open source
+ No call home
+ No tracking or analysis
+ No advertising
+ Active development and support
+ Android 5.1 and higher supported
+ IPv4 / IPv6 TCP / UDP supported
+ Tethering supported
+ Allow optional when the screen is on
+ Optionally lock during roaming
+ Optionally block system applications
+ Material theme with light and dark theme
+ Allow / block individual addresses per application
+ Show network speed graph in a status bar
Required Android Versions : Lollipop [5.0–5.0.2] - Marshmallow [6.0 - 6.0.1] - Nougat [7.0 – 7.1.1] - Oreo [8.0-8.1]