Sentinel is a simple no-root firewall. Decide exactly which apps may use Wi-Fi and mobile data, block the rest, and cut off background trackers and data drain.
It filters traffic locally using Android's VPN slot — your traffic is never sent to any server.
Allow or block internet per app and per network.
Works using Android's local VPN.
Blacklist or whitelist.
See which apps use data.
Optional hosts-based blocking.
No traffic ever leaves your device.
Sentinel Firewall is built by PiTech from the open-source project NetGuard by Marcel Bokhorst (M66B), released under the GPL-3.0 license. We are grateful to the original authors and the open-source community.
Original source: https://github.com/M66B/NetGuard
PiTech maintains this app in the spirit of the GPL-3.0 license and publishes its modifications on
our GitHub.
Sentinel Firewall is free, open-source and ad-free — and we intend to keep it that way. Sponsor PiTech's open-source app program to help fund development, maintenance and new privacy-respecting apps.
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