Re-Rethink

Take control of your Android device's network traffic without requiring root access.
A WireGuard client, OpenSnitch-inspired firewall, and pi-hole-inspired DNS client with blocklists. Built with Kotlin, Jetpack Compose, and Material 3 Expressive.

Re-Rethink is an entirely new project—a modernized, meticulously crafted fork of Rethink DNS. It preserves the original's core philosophy—no-root, VPN-based filtering, local-first processing, and rich DNS features—while adding a completely refreshed, first-class Material 3 Expressive Android UX. Expect dynamic workflows, fluid motion, and greater clarity for logs, rules, and settings.

It operates in three primary modes: VPN, DNS, and Firewall. By supporting multiple WireGuard upstreams in a split-tunnel configuration, Re-Rethink allows for advanced tracking and precise control of app connections while using popular encrypted DNS protocols seamlessly.

• 🛡️ Advanced Firewall: Precisely deny internet access to specific apps based on screen state, background/foreground state, unmetered/metered connections, Play Store categories, or user-defined IP and domain denylists.
• 🎨 UI-First Redesign: Built from the ground up for Material 3 Expressive. Features cleaner spacing, dynamic animations, and improved interaction behaviors over the original app.
• 🌐 Robust DNS: Route DNS traffic to your chosen DNS-over-HTTPS, DNS-over-TLS, or DNSCrypt resolver. The built-in default resolver seamlessly blocks ads and malware.
• 🔒 VPN / Proxifier: Forward TCP & UDP over SOCKS5, HTTP CONNECT, and WireGuard tunnels. Leverage split-tunneling to route different apps over different tunnels concurrently.
• 📊 Network Monitor: A comprehensive, per-app report card tracking when and where connections were made via UDP, TCP, and DNS, featuring upgraded traffic timeline views.
• 📱 No-Root Required: Total control over your traffic without compromising your Android device's security model.
• 🌍 Anti-Censorship & Anti-Surveillance: Engineered to circumvent internet censorship, limit invasive tracking by apps, and enforce privacy.

If you are coming from the original Rethink DNS, we've been hard at work refining the app experience. Major differences and recent improvements include:

• Complete Visual Overhaul: Built heavily with Jetpack Compose, the app embraces Google's Material 3 Expressive design language for a modern, fluid experience.
• Improved Log Clarity: The traffic logs and DNS logs have been completely redesigned with expressive card UI patterns, tonal elevation, and spring animations, so it's clearer which connections were blocked.
• Polished Settings: We've grouped settings logically and refined UI toggles, color pickers, and appearance configurations to be deeply consistent.

Re-Rethink operates as a local-only application. It uses Android's built-in VpnService to route your device's traffic through a local sinkhole.

Because the app routes the traffic internally on your device, it never sends your data to an external proxy or remote server unless you configure it to. The application can inspect the outbound connection attempts and selectively drop or allow packets based on the rules you set for each app, providing a true on-device firewall without requiring root access.

• This app is local-first by default.
• Some device manufacturers apply stricter VPN policies; background behavior can vary.
• Certain background/network capabilities depend on notification, battery optimization, and device permissions.

• Language: Modern Kotlin.
• UI Toolkit: Fully rebuilt with Jetpack Compose and Material 3 Expressive.
• Concurrency: Kotlin Coroutines & Flow for asynchronous data streams.
• Local Storage: Room Database and DataStore for persistent configurations and logs.

To build and run Re-Rethink locally on your machine:

1. Clone this repository:

   git clone https://github.com/bernaferrari/rethink-app.git

2. Open the project in the latest version of Android Studio.
3. Let Gradle sync download all required dependencies.
4. Connect an Android device or start an emulator.
5. Click Run (Shift + F10).

• Original Project: Rethink DNS
• License: Apache License 2.0. See LICENSE for details.

Made with ❤️ for an open internet and Jetpack Compose