Rethink is an Android client for DNS over HTTPS, DNS over Tor, and DNSCrypt, with a WireGuard proxifier, firewall, and connection tracker.
Open source
18 alternativesShizuWall
ShizuWall provides an Android 11 and later firewall solution that does not use a VPN connection.
About ShizuWall
ShizuWall is an open-source Android firewall that controls network access per app without using a VPN connection. It sends Android connectivity chain-3 commands through Shizuku, a local ADB daemon using wireless debugging, or root access.
Use requires Android 11 (API 30) or higher and setup of one of the supported backends. It provides a Quick Settings toggle, app widget, and floating button for control, plus ADB broadcast commands for scripts and automation tools.
Key features
- Per-app network control using Android connectivity chain-3
- Operates without VPN tunnel or packet interception
- Choice of Shizuku, local ADB daemon, or root backend
- Toggle firewall via Quick Settings, widget, or floating button
- Automation with ADB broadcast commands for selected apps
- Offline-first operation; states no analytics, telemetry, or tracking
Best for: Android 11+ users who want per-app network blocking without using the VPN slot and can set up Shizuku, wireless debugging, or root.
Good for
- Does not use a VPN connection or packet interception
- Per-app networking control at the system level via chain-3
- Described as offline-first with no analytics, telemetry, or tracking
Watch out for
- Requires Android 11 (API 30) or higher
- Requires setup of Shizuku, root access, or wireless debugging pairing
ShizuWall at a glance
- Category
- Privacy & Security › Mobile Privacy
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Platforms
- Android
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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ShizuWall FAQ
What is needed to run ShizuWall?
Android 11 or higher and one backend: the Shizuku app, root access, or local ADB daemon via wireless debugging.
How does it block apps without a VPN?
It uses Android chain-3 connectivity commands executed through the selected backend to enable or disable networking per package.
Can it be controlled by automation tools?
Yes, via ADB broadcast to shizuwall.CONTROL with state true or false and an optional CSV list of apps.
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