Rethink: DNS + Firewall + VPN
Rethink: DNS + Firewall + VPN is made and published by Celzero. AppBrain is an independent app data site and isn't affiliated with Celzero. The app name, icon, screenshots and description belong to Celzero and are shown as published on Google Play.
AppBrain's verdict
Popular- Rating on Google Play
- 3.89
- 3,445 ratings
- Installs
- 1.1 million
- Last updated
- October 13, 2026
- Ads
- No ads
- Size
- 72.5 MB
Rethink: DNS + Firewall + VPN is popular, with 1.1 million installs. Users are divided: 3.9 stars from 3,445 ratings.
Summary
Rethink: DNS + Firewall + VPN combines network security, DNS control, and WireGuard VPN in one open-source tool. It highlights real-time traffic monitoring and anti-censorship through global DNS locations. With 1,000,000+ total downloads and 41K in the last 30 days, the app carries a rating of 3.89 from 3,445 users.
Pros & Cons
- Comprehensive security suite: firewall, monitoring, DNS, and anti-censorship
- WireGuard-based VPN for fast, secure connections
- Open source and free of trackers for transparency and trust
- Global reach with 300+ DNS locations for fast, reliable access
- Requires a broad set of permissions including location and foreground service
- Firewall relies on Accessibility Service, which may raise accessibility concerns
- Some privacy-focused rivals may offer deeper privacy controls not highlighted here
User feedback
Ratings and reviews on Google PlayComments on Rethink: DNS + Firewall + VPN for Android
Google Play Rating history and histogram
Store listing
By Celzero, from Google Play“Firewall apps, use WireGuard VPN, monitor network, block malware, change DNS.”
Description by Celzero Written by the developer, not by AppBrain. Click to read.
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. Block spyware, malware, ransomware and more.
A firewall blocks any app connecting to the Internet over WiFi or Mobile data. Since most forms of surveillance require the data to be sent the network to a server, firewalling them effectively mitigates the threat (File Managers, Alarm Clock, Calculator are few such examples of apps that do not require any Internet access to function). The firewall feature uses Accessibility Service to detect and firewall background applications.
Monitoring: Keep tabs on incoming and outgoing Internet traffic.
If enabled, the connectivity logs are collected and analyzed. Automated reports flag previously unknown or suspicious connections, and reveal the extent of attempt to steal data by spyware networks. In our tests, around 60% of the traffic is flagged and reported as being initiated by known spyware. Logs generated are made available in near-real time to the user for their own analysis.
WireGuard: Secure outgoing Internet traffic.
The app uses fast, modern, light-weight, and secure WireGuard protocol to encrypt outgoing connections to any compatible VPN provider of your choice.
Anti-censorship:
The app encrypts your internet connection to Domain Name System (DNS) server run by Rethink with presence in our 300+ locations world-wide. DNS servers are the address book of the internet: A DNS server provides the exact addresses you need to visit a website or open an app.
Data Monitor: Track per-app and per-connection Mobile or WiFi data usage.
Recent changes:
UI: A new, re-designed homescreen.
UI: Re-designed all RPN screens, including country selection, connection stats, and multi-hop setup.
New: Allowed / blocked domain & IP stats grouped by app and time.
New: Universal trust / allow rules for domains and IPs.
New: 3 new Smart DNS preset filters: Privacy, Security, and Family.
Fix: Re-enforce trust/allowed Universal (global) domain and IP rules.
Improvement: UI changes to accommodate Foldables.
Safety and technology
Found in the app by AppBrain- Ads
- No ads
- Price
- Free
- Libraries
- 41
- App size
- 72.5 MB
- Needs Android
- 6.0+
- Content rating
- Everyone
Technologies used by Rethink: DNS + Firewall + VPN
Releases
Updates seen on Google Play- Version
- v0.5.8
- Launched
- April 2021
Alternatives
Similar apps and more from CelzeroAlternatives to Rethink: DNS + Firewall + VPN
Installs
Tracked by AppBrain- Last 30 days
- 41 thousand
- Per day
- 1.4 thousand
- 30-day average
- Play install range
- 1+ million
- Launched
- April 2021
Installs over time
Rethink: DNS + Firewall + VPN has been installed 1.1 million times. Over the past 30 days, it averaged 1.4 thousand installs per day.
Rankings
Google Play top chartsGoogle Play Rankings for Rethink: DNS + Firewall + VPN
About the app and developer
About Rethink: DNS + Firewall + VPN
Rethink: DNS + Firewall + VPN is a tools app developed by Celzero.
Install Statistics
Rethink: DNS + Firewall + VPN has been installed 1.1 million times. In the last 30 days, the app was installed 41 thousand times.
User Ratings
Rethink: DNS + Firewall + VPN is rated 3.89 out of 5 stars. The rating is based on 3.4 thousand ratings.
App Information
Rethink: DNS + Firewall + VPN is freely available from Google Play. The app size is 72.47 MB. The latest version available is v0.5.8. The last update was on October 13, 2026.
Technical Requirements
Rethink: DNS + Firewall + VPN requires Android 6.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since April 2021.
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