Rethink blends a WireGuard VPN with a transparent firewall and real-time network monitoring to block spyware, ransomware, and DNS manipulation. Open‑source and tracker‑free, it leverages 300+ global DNS locations for fast, secure connections. With 1,000,000+ total downloads and 28K in the last 30 days, it remains a notable tool in the TOOLS market.
Pros & Cons
WireGuard-based VPN for fast, secure outbound connections
Open source with no trackers
Comprehensive per-app monitoring and firewall controls
DNS protection across 300+ global locations
Not ranked in any top lists, limiting visibility in rankings
Marketing text is highly technical and may be less approachable for casual users
About Rethink: DNS + Firewall + VPN
Rethink: DNS + Firewall + VPN is a tools app developed by Celzero.
How many times has Rethink: DNS + Firewall + VPN been downloaded?
Rethink: DNS + Firewall + VPN has been downloaded 1 million times. In the last 30 days, the app was downloaded 28 thousand times.
What is the rating of Rethink: DNS + Firewall + VPN?
Rethink: DNS + Firewall + VPN is rated 3.96 out of 5 stars, based on 3.3 thousand ratings.
Is Rethink: DNS + Firewall + VPN free?
Rethink: DNS + Firewall + VPN is free to download. The APK download size is 72.82 MB. The latest version available is v0.5.6. The last update was on August 9, 2026.
What are the requirements for Rethink: DNS + Firewall + VPN?
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 April 2021.
Description
Say hello to a safer, transparent, and secure Android.
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Comments on Rethink: DNS + Firewall + VPN for Android
★★★★★Chris Ward· Jul 24, 2026
This app has got my back .the only app to combat the"Ivan the terrible firebase remote config from the malious developer causing great harm impairment. As the malious Developer co-opts every legitimate potential dangerous API, this app aggregates the developer consequently developer named an IRQ conflict as "Rethinking Blacklist ".txt Justice is served via Google backed MALIOUS developer! When is the 3-year ending career criminal?
★★★★★Chiku· Mar 25, 2026
Orbit is renamed to Tor VPN, please fix it. Other than that, it's the best of its kind.
★★★★★Oliver· Feb 24, 2026
Great app if you get it elsewhere, because only then does it offer the feature to use local block lists
★★★★★Keith White· Aug 4, 2026
Rethink: DNS + Firewall + VPN still works in 2026 impressed.
★★☆☆☆Shailesh Rathod· Feb 28, 2026
Bad experience no internet connection problem aati he jabs bhi rethink connected hota he to no internet connection problem aati he. Internet bhi nahi Chalía
★★☆☆☆Rich Adams· Aug 23, 2026
Worked great originally, but latest update (0.56) broke local connections. Everything comes from 10.111.222/24 now, so local things that previously allowed my phone IP no longer do. Gave up trying to debug and just went back to 0.55u, which works fine. I know there's option to disable for local addresses, but the entire point is I want the firewall applied to everything. I don't want it changing source IP.
★★☆☆☆Joe McMullin· Jul 1, 2026
The latest update is a disaster, crashing continuously and no log of what's happening. I can't get into the GUI to kill it, so I have to uninstall. It last for a few hours and happens again. It was excellent up until then
★★☆☆☆Mark Wickens· Mar 9, 2026
Generally good. It certainly seems to do what it says on the tin - but there is one big exception. Podcasts. I have tried two podcast managers and neither are able to penetrate the DNS blacklists for downloads. I do not know which download domains are blacklisted so that I can whitelist them, but it seems odd that Tune In can't even download a Daily Telegraph podcast.
★★☆☆☆Sharnali Haque· Jul 18, 2026
Actually, after the latest update, you have a problem. If you block WhatsApp, it opens automatically. No one should install this app. I uninstalled it. 🤬
Google Play Rankings for Rethink: DNS + Firewall + VPN
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Technologies used by Rethink: DNS + Firewall + VPN
22 permissions·42 libraries
Subscribe to see full permission and library details
Trust & Safety: Open source and tracker-free. The app requests a broad set of permissions including INTERNET, ACCESS_NETWORK_STATE, CAMERA, FOREGROUND_SERVICE, FOREGROUND_SERVICE_SYSTEM_EXEMPTED, INTERACT_ACROSS_USERS, MANAGE_EXTERNAL_STORAGE, POST_NOTIFICATIONS, QUERY_ALL_PACKAGES, READ_EXTERNAL_STORAGE, RECEIVE_BOOT_COMPLETED, USE_BIOMETRIC, USE_FINGERPRINT, WAKE_LOCK, WRITE_EXTERNAL_STORAGE and DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION. Connectivity logs can be collected and analyzed when enabled to monitor traffic and security events.
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