Celzero Rethink app by celzero
DNS over HTTPS / DNS over Tor / DNSCrypt client, WireGuard proxifier, firewall, and connection tracker for Android.
About Celzero Rethink app
From the project's README at github.com/celzero/rethink-app. Lightly cleaned for readability; for the full source see the upstream repo.
Rethink DNS + Firewall + VPN for Android A WireGuard client, an OpenSnitch-inspired firewall and network monitor + a pi-hole-inspired DNS over HTTPS, DNS over TLS, DNSCrypt client with blocklists.
In other words, Rethink DNS + Firewall + VPN has three primary modes, VPN, DNS, and Firewall. The VPN (proxifier) mode supports multiple WireGuard upstreams in a split-tunnel configuration. The DNS mode routes all DNS traffic generated by apps to any user-chosen DNS-over-HTTPS / DNS-over-TLS / DNSCrypt resolver, or to WireGuard-configured DNS in a split-tunnel configu
Health score breakdown
6-dimension composite. See methodology for formula and weights.
Adoption signals
Real-world usage data, pulled from each registry. The bigger the numbers, the more battle-tested the project.
| Signal | Value | Source |
|---|---|---|
| GitHub stars | 4.8k | github.com/celzero/rethink-app |
| GitHub forks | 278 | github.com/celzero/rethink-app |
Release & maintenance
Is this project actively maintained, or about to die? Check the recency of last commit and last release.
| Project age | 5.9 years | since Jun 2020 |
| Last commit | 8 days ago | Apr 29, 2026 |
| Releases shipped | 38 | last: 6 months ago |
| Funding links | 2 | declared by maintainers |
Self-hosting cost across providers
Detected requirements: 4GB RAM, 40GB disk minimum. Cheapest plan per provider that meets the requirement.
| Provider | Plan | Specs | Monthly | |
|---|---|---|---|---|
| hetzner | CAX11 | 2c · 4GB · 40GB | $4.13 USD | Deploy → |
| vultr | VC2 | 1c · 1GB · 25GB | $5 USD | Deploy → |
| linode | Nanode 1GB | 1c · 1GB · 25GB | $5.12 USD | Deploy → |
| digitalocean | Basic Regular 1GB | 1c · 1GB · 25GB | $6 USD | Deploy → |
What people say on Hacker News
Ready to self-host Celzero Rethink app?
Spin up a hetzner CAX11 (4GB RAM, 40GB disk) for $4.13/mo and follow the project's official install docs.
Data last refreshed May 7, 2026.
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