A no-root firewall that decides which apps may go online
Allow or block every app separately on Wi-Fi, mobile data and roaming. Block whole lists of tracking, malware and phishing domains, and see in the log which app reached which destination. Everything runs on your device.
Get it on Google Play Android 8.0 and later. Available on Google Play.
Stop traffic, see it, and cut it down.
A look at the actual screens.
Android needs the VPN permission to judge each app's traffic, and shows a key icon while the firewall is on. This is nothing like an ordinary VPN service.
Android allows only one active VPN, so this cannot run alongside another VPN app.
Available from the store.
Get it on Google Play Android 8.0 and later. Available on Google Play.