# Rethink (open-source privacy app)

> Rethink is a free, open-source privacy app for Android. Firewall apps, use WireGuard VPN, monitor network, block malware, change DNS. It has 5,549 GitHub stars and is released under the Apache-2.0 license, and you can install it from F-Droid and Google Play.

Say hello to a safer, transparent, and secure Android. VPN: Connects to multiple WireGuard VPNs of your choice. Safe: Reveals network activity of installed apps and lets you disable, uninstall, or firewall them. Secure: First line of defense against spyware, ransomware, and malware that steal personal information and takeover accounts. Protects from DNS manipulation typically employed to censor websites, social media, and messaging apps. Fast: DNS Servers deployed to 300+ locations world-wide to ensure your internet is as fast and highly available as it can be. Open: Open source and free of any trackers. Features Firewall: Prevent apps from connecting to the Internet.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/celzero/rethink-app |
| Platforms | Android |
| Built with | Kotlin |
| GitHub stars | 5,549 |
| License | Apache-2.0 (open source) |
| F-Droid | https://f-droid.org/packages/com.celzero.bravedns/ (package com.celzero.bravedns) |
| F-Droid anti-features | none flagged |
| Google Play | https://play.google.com/store/apps/details?id=com.celzero.bravedns |
| App Store | not linked |
| Website | https://rethinkdns.com/app |
| Official | no |
| Category | Privacy, ad-blocking & VPN |
| Latest release | v0.5.7 (Sep 21, 2026) |
| Last commit | Sep 22, 2026 |

F-Droid builds its apps from source and flags anti-features: https://f-droid.org/en/docs/Anti-Features/

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