🛡️ Anti-Censorship Technology

Who Controls What
You Can Say?

Governments block websites. Corporations silence voices. ISPs intercept your queries before they reach their destination. This is how censorship works at a technical level — and these are the tools, protocols, and architectures built to resist it.

🔌 Internet Shutdowns 🕸️ Centralized vs Decentralized ☠️ DNS Poisoning 🔐 VPNs 🧅 Tor 🔗 Federation 📡 Mesh Networks 📶 Offline Comms

On This Page

⚙️ The Mechanics

How Censorship Actually Works

Censorship is rarely a single action. It's a layered system of technical controls, legal pressure, and platform power. Understanding each layer reveals why no single tool defeats all of them — and why defence in depth matters.

🚫

IP Address Blocking

The bluntest instrument. ISPs are instructed to drop all traffic to a specific IP address or range. Fast to implement, easy to circumvent with a VPN or proxy. Collateral damage is common — one IP may serve thousands of legitimate sites.

☠️

DNS Poisoning & Hijacking

Instead of blocking traffic, the ISP intercepts your domain lookup and returns a false IP or an error. You never even reach the real server. Used by the UK, Turkey, Russia, and China extensively. Solvable with DNS-over-HTTPS or a VPN.

🔍

Deep Packet Inspection (DPI)

Rather than blocking by destination, DPI examines the contents of network packets in real time — scanning for banned keywords, protocol signatures, or file hashes. China's Great Firewall and Iran's national network use DPI at national scale. Standard VPN protocols are detectable this way.

🛑

Domain Takedowns

Legal pressure on domain registrars (Namecheap, GoDaddy) or the registry operator to suspend or seize a domain name entirely. The site's content remains on its server — but no one can reach it by name. .onion domains are immune to this: they don't use DNS at all.

📵

App Store Removal

Both Apple and Google have complied with government demands to remove apps from local versions of their stores. Russia forced the removal of Navalny's voting app in 2021. China's App Store lacks almost all privacy-focused apps. Android allows sideloading APKs outside the Play Store; iOS does not without jailbreaking.

🐌

Throttling

Rather than blocking outright, traffic to a service is deliberately slowed to make it unusable — while maintaining plausible deniability. Russia throttled Twitter in 2021 before partially blocking it. Hard to prove and hard to circumvent without a VPN or routing around the affected ISP.

🔇

Platform-Level Content Moderation

Social media companies remove posts, suspend accounts, or downrank content under pressure from governments or advertisers. Twitter/X, YouTube, Meta, and TikTok all comply with legally backed takedown orders globally. Decentralised platforms have no single operator to receive such orders.

🗺️

BGP Hijacking

At the most powerful level, internet routing itself is manipulated. A government instructs national ISPs to announce false BGP routes, diverting or dropping traffic to entire networks before it reaches its destination. Used during the Egypt and Libya shutdowns. Requires national-level ISP control.

⚖️

Legal & Regulatory Pressure

Encryption backdoor mandates, "lawful intercept" requirements, and licensing laws force service providers to weaken their own security or face shutdown. The UK's Investigatory Powers Act, Australia's AA Act, and the EU's proposed CSAM scanning regulation all operate this way.

"The internet interprets censorship as damage and routes around it." — John Gilmore, EFF co-founder, 1993. Still largely true — but the censors have caught up.
🔌 Internet Shutdowns

When Governments Pull the Plug

An internet shutdown is the intentional disruption of internet or electronic communications across a population — usually during elections, protests, or military coups. They are increasingly common, and increasingly lethal: when communications go dark, so does accountability.

283
Documented shutdowns in 2023
(Access Now, 2024)
39
Countries that imposed shutdowns in 2023
$24B
Estimated economic cost of shutdowns in 2022 globally
73
Record: Consecutive days of Iran's 2026 blackout — the longest nationwide shutdown in history
(Al Jazeera, 2026)

🇮🇷Iran — 2026 RECORD

Following US and Israeli strikes on February 28, 2026, Iran imposed a 73-consecutive-day near-total blackout — over 1,728 hours — the longest sustained nationwide internet shutdown in recorded history. Global connectivity dropped to roughly 1% of normal levels. Limited, state-approved tiered access was introduced for vetted businesses in late April, but the majority of the population remained severely cut off throughout. (Al Jazeera, 2026)

🇮🇷Iran — November 2019

A 5-day near-total shutdown coincided with fuel price protests. Subsequent investigations documented over 1,500 deaths. The shutdown prevented journalists and citizens from transmitting evidence to the outside world. Iran's willingness to repeat and escalate this tactic culminated in the 2026 record blackout above.

🇲🇲Myanmar — 2021 Coup

Following the February 2021 military coup, the junta imposed progressively stricter restrictions. Mobile data was cut entirely. Social media blocks, then broadband cuts followed. Lasted well over a year in various forms.

🇮🇳India — World Leader in Shutdowns

India imposed more internet shutdowns than any other democracy for several consecutive years. Kashmir experienced a 552-day shutdown (2019–2021), the longest ever recorded in a democratic country.

🇷🇺Russia — Partial & Rolling Blocks

Russia blocked Twitter, Facebook, Instagram, and LinkedIn. Foreign VPN providers are required to connect to Roskomnadzor's filtering system or be blocked. Domestic VPN use surged 2,000% after the Ukraine invasion in 2022.

🇨🇳China — The Great Firewall

The most sophisticated national censorship system ever built. Blocks Google, Facebook, YouTube, Wikipedia, most Western news sites, and thousands more. Uses DPI, IP blocking, DNS poisoning and AI content analysis simultaneously. ~800,000 websites blocked.

🇸🇩Sudan — Military Coup 2021

During the October 2021 coup, Sudan experienced 25+ days of near-total internet blackout. NetBlocks and IODA documented the shutdown in real time. Protesters coordinated using offline tools and pre-arranged street signals.

🇰🇵North Korea — No Internet by Design

For ordinary citizens there is no global internet at all — only Kwangmyong, a state-run national intranet of pre-approved content. The tiny elite with real access is tightly monitored and whitelisted. This is censorship as total isolation rather than selective blocking — the most absolute information control on Earth.

How shutdowns are tracked: Organisations including Access Now (#KeepItOn), NetBlocks, and IODA (Internet Outage Detection and Analysis) monitor global connectivity in real time and document shutdowns. Their data has been cited in UN human rights reports.
🏛️ Architecture

Centralized vs Decentralized Platforms

The most important factor in a platform's censorship resistance is its architecture. A centralized service has a single operator, a single set of servers, and a single point of legal pressure. A decentralized system has none of those things — and each removes a lever that governments and corporations use to suppress communication.

🏢
Centralized
WhatsApp · Facebook · YouTube · TikTok · Gmail
Single company controls everything
One IP range / domain to block
Complies with government orders
Content removed by policy or law
Typically fast and reliable
User-friendly
🔗
Federated
Matrix · Mastodon · XMPP · Email · Diaspora
No single operator
Anyone can run a server
Individual servers can be blocked
Move servers without losing contacts
Data stays on your chosen server
Moderate complexity for users
👥
Peer-to-Peer (P2P)
BitTorrent · Briar · Session · Nostr · Freenet
No servers to take down
No single point of censorship
Traffic patterns detectable by DPI
Resilient to outages
Requires both users online (often)
More complex to implement well
📡
Mesh / Off-Grid
Radar · Meshtastic · Briar · Reticulum · Ham APRS
No internet required at all
Works during total shutdowns
No infrastructure to block
End-to-end encrypted by design
Limited range (without relays)
Requires dedicated hardware or app
The key insight: Censorship requires a chokepoint — a single address, server, or operator that can be pressured or blocked. Every architectural step away from centralization removes one of those chokepoints. The most censorship-resistant systems have no chokepoints at all — they operate over physical radio frequencies that no registrar or ISP controls.
🗂️ Serverless Discovery

No Server to Shut Down — Discovery via Distributed Hash Tables

Even peer-to-peer apps usually keep one quiet chokepoint: a central server that tells you where your contacts are and who is nearby. Switch that server off and the network goes dark. Radar removes this last chokepoint with two Distributed Hash Tables (DHTs) — a shared, self-organising directory spread across the phones themselves. Radar keeps working even when its own central server is unreachable, seized, or government-blocked.

🗂️
A Directory With No Owner
The same idea that keeps BitTorrent alive — applied to finding people, not files

A DHT is a lookup table sharded across every participating device. No single phone holds all of it, and no single server is in charge. To find a value you ask the handful of peers whose IDs sit closest to the key, and they point you onward until you arrive. There is no central address to poison, no domain to seize, and no operator to serve a takedown order to.

UUID → IP Address

  • Replaces the central lookup server. To reach a contact, Radar resolves their random UUID to a current ip:port straight from the DHT — no master directory required.
  • Signed, not trusted. Each record is Ed25519-signed by its owner, so any relay can pass it on but can never forge it or redirect you to the wrong device.
  • Resilient by design. If the central server is offline or blocked, contacts can still be located peer-to-peer. Better resilience; resistant to a government shutdown.

Location → Nearby UUIDs

  • Serverless “who's near me?”. A geographic DHT lets a phone search a map cell for the closest peers — with no central nearby-peers service to take down.
  • Quadtree search. Presence is published under a ladder of grid cells, so a finder climbs outward until it has gathered the closest peers within range.
  • Kept warm by gossip. Every Bluetooth encounter quietly exchanges these signed records, freshening the directory without any internet round-trip at all.
Why this matters for censorship: a central server is the single thing a government can most easily pressure, block, or switch off. By distributing both kinds of discovery — where is this person and who is near me — across the user devices themselves, Radar removes that chokepoint. The central server becomes a convenience, not a dependency: when it disappears, the network simply heals around the hole and carries on.
📖 DNS

DNS Poisoning — The Internet's Phone Book, Corrupted

Every time you type a website address, your device asks a DNS server to translate that name into an IP address — like looking up a phone number. Governments and ISPs exploit this process to silently redirect or block your requests before you ever reach the real site.

How Normal DNS Works

Your Device"Where is bbc.co.uk?"
→
ISP DNS ServerLooks up the answer
→
151.101.0.81Correct IP returned
→
Connected ✓

How DNS Poisoning Works

Your Device"Where is banned-site.com?"
→
ISP DNS (Intercepted)Ignores real answer
→
Blocked / Wrong IP"Site not found" or block page

Real-World Examples

  • UK: Major ISPs block thousands of sites via DNS — initially The Pirate Bay, now including many more under court orders. UK Sky, BT, Virgin all participate.
  • Turkey (2014): Government blocked Twitter via DNS. Citizens spray-painted the IP addresses 8.8.8.8 and 8.8.4.4 on walls to let people bypass it.
  • Russia: Roskomnadzor maintains a national blacklist of millions of domains; ISPs must implement it via DNS blocking.
  • China: The Great Firewall performs DNS poisoning at the national backbone level — returning deliberately corrupt responses for banned domains.
  • Iran: Routinely tampers with DNS to block sites and steer users onto the state-run National Information Network. During the 2022–2023 protests this escalated into throttling and near-total shutdowns — censorship by access-denial as much as by DNS manipulation.
  • India: The most prolific blocker among democracies — ISPs enforce government and court orders largely through DNS/URL blocking, alongside frequent regional shutdowns such as the 552-day Kashmir blackout.

Defences Against DNS Poisoning

  • DNS-over-HTTPS (DoH): Encrypts your DNS query inside normal HTTPS traffic. Your ISP sees only that you contacted a DoH server — not which domain you looked up. Built into Firefox, Chrome, and Windows 11.
  • DNS-over-TLS (DoT): Similar to DoH but uses a dedicated encrypted channel. Port 853.
  • Alternative DNS resolvers: Cloudflare 1.1.1.1, Google 8.8.8.8, Quad9 9.9.9.9 — bypass ISP-run servers, but the ISP can still block these IPs directly.
  • VPN: DNS queries are resolved by the VPN server instead of your ISP. Completely bypasses local DNS manipulation.
  • Tor: Uses its own internal name resolution — .onion domains don't use DNS at all.
  • DNSSEC: Cryptographically signs DNS records so forgery is detectable. Doesn't prevent blocking, but prevents silent redirection.
🔐 VPNs

What is a VPN — and Why Would You Want One?

VPN stands for Virtual Private Network. It's one of the most widely used censorship circumvention tools in the world — and one of the most misunderstood. Here's what it actually does, and just as importantly, what it doesn't.

🔐
How a VPN Works
An encrypted tunnel between your device and a server elsewhere in the world

When you connect to a VPN, your device creates an encrypted tunnel to a VPN server — typically in another country. All your internet traffic is routed through that tunnel. From the outside world's perspective, your traffic appears to come from the VPN server's IP address, not yours.

Without a VPN

Your DeviceYour real IP
ISPSees everything
WebsiteKnows your IP

With a VPN

Your DeviceYour real IP
VPN ServerDecrypts here
WebsiteSees VPN's IP only

What a VPN Does

  • Encrypts traffic between your device and the VPN server — your ISP sees only an encrypted blob
  • Bypasses local DNS poisoning (DNS resolved on VPN server's end)
  • Bypasses IP-level blocks (your traffic goes to the VPN first, not the blocked destination)
  • Hides your real IP address from the sites you visit
  • Protects you on untrusted public Wi-Fi (coffee shops, airports)
  • Allows access to geo-restricted content (streaming, news sites)

What a VPN Doesn't Do

  • Make you anonymous — your VPN provider can see and log your activity
  • Protect you from website tracking, cookies, or fingerprinting
  • Help if the VPN server's IP is itself blocked by the censor
  • Help if the VPN protocol is detected and blocked by DPI (China blocks most standard VPN protocols)
  • Protect you if you log into accounts that identify you personally
The DPI problem: China, Iran, and Russia use Deep Packet Inspection to detect the fingerprints of VPN protocols (OpenVPN, WireGuard, IPSec). This blocks most consumer VPNs. The solution is obfuscated protocols: tools like Shadowsocks, obfs4, Trojan, and V2Ray disguise VPN traffic as ordinary HTTPS — making it almost indistinguishable from normal web browsing. Mullvad and ProtonVPN both offer obfuscated modes.

Trustworthy VPN Providers

  • Mullvad — no-log, accepts cash payment, no account email required, Sweden (strong privacy law)
  • ProtonVPN — Swiss-based, open source, audited, free tier available, offers Tor over VPN
  • IVPN — privacy-focused, no-log, audited, accepts Monero
  • Avoid free VPNs — most sell your data or inject ads. You pay with privacy instead of money.

Protocols to Know

  • WireGuard — fast, modern, lightweight. Detectable by DPI but excellent for non-censored environments.
  • OpenVPN — mature, widely supported. Detectable but can be wrapped in obfuscation layers.
  • Shadowsocks — designed specifically for censorship circumvention. Looks like HTTPS.
  • obfs4 / Pluggable Transports — used by Tor; makes traffic look like random noise.
  • Psiphon — free tool combining VPN, SSH, and HTTP proxies with built-in obfuscation for censored countries.
🧅 Onion Routing

Tor — Anonymity Through Layered Encryption

Tor (The Onion Router) is a free, open-source anonymity network that routes your traffic through three or more volunteer-run servers around the world. No single relay knows both who you are and what you're doing. Tor provides anonymity, not just privacy — a meaningfully stronger guarantee than a VPN.

🧅
How Onion Routing Works
Each relay peels one layer of encryption — like an onion

Your Tor client encrypts your data in three nested layers — one for each relay it will pass through. Each relay can only decrypt its own layer, revealing only the next hop in the chain. No relay ever knows both the origin and destination of a message.

📦
Your Data
Guard Node
knows your IP
not destination
Middle Node — knows neither — Exit Node knows destination, not your IP

What Tor Provides

  • Strong anonymity — even Tor cannot identify users if used correctly
  • .onion hidden services — websites that exist only inside Tor; no IP address to block or seize
  • Censorship circumvention — access blocked sites via exit nodes in uncensored countries
  • Tor bridges + obfs4 — unlisted entry nodes that bypass Tor blocking in China, Russia, Iran
  • Free to use; operated by a non-profit (the Tor Project)

Limitations

  • Slow — three hops adds significant latency; unsuitable for video calls or torrenting
  • Exit node visibility — the exit node sees your unencrypted traffic if you don't use HTTPS (always use HTTPS)
  • Tor traffic is fingerprinted — in highly censored countries, the fact you're using Tor is detectable; use bridges
  • Not magic — anonymity breaks if you log into personal accounts, enable JavaScript recklessly, or download files and open them
  • Some sites block Tor exit node IPs
Tor Bridges: If Tor itself is blocked (as in China and Russia), you can use "bridges" — unlisted relay addresses not published publicly. Request bridges from bridges.torproject.org or email bridges@torproject.org. Combined with the obfs4 pluggable transport, your connection looks like random noise to DPI systems. The Tor Browser includes bridge support built-in.
🔗 Federation

Matrix & Federated Communication

Federation is the middle ground between fully centralized (one company controls everything) and fully decentralized (no servers at all). In a federated system, anyone can run a server that interoperates with all other servers — just as any email provider can send mail to any other. Matrix is the leading open standard for federated real-time communication.

🔗
How Federation Works
Interoperable servers, no single point of control

Think of it like email. You have an address at your provider (alice@company.com) and can email anyone at any other provider (bob@gmail.com). No one company owns "email." Matrix works the same way: your account (@alice:matrix.org) can message anyone on any Matrix homeserver — including private self-hosted ones.

Censorship Resistance

  • No single company controls the whole network — there's no one to pressure
  • If your homeserver is blocked or shut down, you can move to another server and retain your contacts and room history
  • Anyone can run a homeserver — on a Raspberry Pi at home, a VPS, or a corporate server
  • Room history is replicated across all participating servers — removing it requires taking down every server simultaneously
  • Used by the German Federal Government, French Government, GNOME, KDE, Mozilla, and many universities

Honest Limitations

  • Individual homeservers can still be blocked by IP at the ISP level
  • The largest server (matrix.org) is still a single chokepoint if used naively
  • Metadata (who rooms exist, who is a member) is visible to participating homeservers
  • End-to-end encryption (E2EE) is available but not always on by default in older clients
  • More complex to self-host than, say, Signal
Matrix bridges let you connect to Signal, Telegram, Discord, IRC, Slack, and more — all from one Matrix client. This means you retain your contacts even as individual platforms come and go. The main Matrix client is Element (web, Android, iOS, desktop). For maximum censorship resistance, host your own homeserver and connect to it via Tor or a VPN.
🔒 Encrypted Messaging

Signal — Privacy by Design

Signal is widely regarded as the gold standard for private messaging. It uses end-to-end encryption by default for all messages, calls, and file transfers — meaning only the sender and recipient can read them. Even Signal's own servers cannot.

🔒
The Signal Protocol
Open source, independently audited, and copied by WhatsApp, Google Messages, and others

What Makes Signal Stand Out

  • End-to-end encrypted by default — no opt-in required
  • Minimal metadata collection — Signal stores almost nothing about users
  • Sealed sender — even Signal cannot determine who sent a message to whom
  • Open source — server and client code is publicly audited
  • Signal usernames — you no longer need to share your phone number with contacts
  • Disappearing messages, Note to Self, encrypted group calls up to 40 people
  • Subpoena response: when the US DOJ demanded Signal user data in 2021, Signal was able to provide only two data points: account creation date and last connection date

Honest Limitations

  • Centralized infrastructure — Signal runs on Amazon AWS servers. If those IPs are blocked, Signal goes down. (Iran and China have done this.)
  • Signal has a domain fronting workaround for censored countries, but its effectiveness varies
  • Phone number still required for registration — though usernames decouple it from sharing
  • Not federated — you cannot self-host a Signal server and interoperate
  • US-based non-profit — subject to US legal jurisdiction, though cryptographic design limits what they can provide
Who uses Signal's protocol? The Signal Protocol is open source and has been adopted by WhatsApp (1 billion+ users), Google Messages (default for Android RCS), Facebook Messenger (optional), and Skype (optional). The encryption is the same — but these platforms collect far more metadata, and their server-side infrastructure is not open source or independently verified.
🛰️ Beyond the Internet

Offline & Mesh Communication Systems

When internet access is cut entirely — during a coup, a natural disaster, or a prolonged infrastructure failure — all the tools above stop working. These systems don't need the internet at all. They create their own networks from scratch, using radio signals, Bluetooth, and Wi-Fi Direct.

📡

Radar

A fully off-grid Android app that creates a peer-to-peer mesh over Bluetooth LE and Wi-Fi Direct. See your group on a live radar display, send encrypted messages, make voice and video calls — all with no internet, no SIM, no infrastructure. When the internet is available, peers are found through distributed hash tables rather than a single central server — so discovery survives even a government shutdown of Radar's own server.

No Internet Required End-to-End Encrypted Radar / Map View Android
📟

Meshtastic

Open-source mesh networking using LoRa radio hardware. Cheap devices (£25–£60) communicate up to 30km line-of-sight without any infrastructure. Encrypted text messages and GPS positions are relayed across the mesh. No licence required in the ISM band.

30km+ Range No Licence Required Hardware Required Text & GPS Only
🧅

Briar

A P2P messaging app for Android that works over Tor, Bluetooth, and Wi-Fi Direct. No servers, no central accounts. When the internet is available, it uses Tor for anonymity. When it isn't, it falls back to local Bluetooth or Wi-Fi. Designed specifically for journalists and activists.

Tor + BT + WiFi No Accounts Activist-Focused Android
🛰️

Garmin inReach / Satellite

Two-way messaging via the Iridium satellite constellation — truly global, works anywhere on Earth with a clear sky view. Not dependant on any national internet infrastructure. Requires a subscription (~£15/month) but is the most reliable off-grid long-range option available to civilians.

Global Coverage Subscription Required Hardware Cost SOS Capable
🎙️

Amateur (Ham) Radio

A Foundation licence (a weekend course in the UK, or the Technician exam in the US) gives access to a huge range of frequencies. Local repeaters relay voice across a city; HF radios communicate worldwide without any infrastructure. APRS provides digital packet messaging and GPS tracking.

Regional to Global Licence Required Voice + Data Resilient
📻

Shortwave Radio (Receive)

A simple shortwave receiver (£30–£80) can pick up broadcasts from the BBC World Service, Radio Free Europe, Voice of America, and others. No licence, no account, no infrastructure — just a signal from the sky. Historically the primary tool for information access behind the Iron Curtain.

No Licence Global Reach Receive Only Hardware Needed
🌐

Reticulum Network Stack

An open-source cryptographic networking stack designed to work over any medium — LoRa, packet radio, serial links, TCP, I2P. Provides end-to-end encrypted, self-addressing communications with no dependency on central infrastructure. Used in projects like Nomadnet and Sideband.

Any Medium E2EE Technical Users Open Source
📶

goTenna / Meshtastic Relay

Pocket-sized radio devices that create a mesh network between smartphones using 900MHz / 150MHz ISM band radio. Range of 4–10km per node, with messages relaying hop-by-hop across all devices on the network. Encrypted text, GPS positions.

No Infrastructure Mesh Relay Hardware Required iOS + Android
📊 Summary

Full Technology Comparison

No single tool is right for every threat model. Use this table to identify which technologies address which specific risks.

Technology Works Without Internet Censorship Resistant Anonymity Surveillance Resistant Ease of Use Free?
WhatsApp / Telegram ✗ No ✗ Low ✗ None ~ Moderate ✓ Very Easy ✓ Free
Signal ✗ No ~ Moderate ~ Low ✓ Strong ✓ Easy ✓ Free
VPN (standard) ✗ No ~ Moderate ~ Partial ~ Depends on provider ✓ Easy ~ Paid (mostly)
VPN + Obfuscation (Shadowsocks/obfs4) ✗ No ✓ Strong ~ Partial ~ Depends on provider ~ Moderate ~ Paid
Tor Browser ✗ No ✓ Strong ✓ Strong ✓ Strong ~ Moderate ✓ Free
Matrix (self-hosted) ✗ No ✓ Strong ~ Low–Moderate ✓ Strong (E2EE) ~ Moderate ✓ Free
DNS-over-HTTPS ✗ No ~ DNS blocks only ✗ None ~ Hides DNS queries ✓ Easy (built-in) ✓ Free
Briar (Bluetooth/WiFi) ✓ Yes — local mesh ✓ Very Strong ✓ Strong (Tor) ✓ Strong ~ Moderate ✓ Free
Meshtastic (LoRa) ✓ Yes — radio mesh ✓ Maximum ~ Moderate ✓ Encrypted ✗ Technical ~ Hardware cost
Amateur Radio (HF) ✓ Yes — no infrastructure ✓ Maximum ✗ Calls are identifiable ✗ Unencrypted by law ✗ Technical + licence ~ Licence + hardware
Radar App ✓ Yes — BLE + WiFi mesh ✓ Maximum ~ Pseudonymous ✓ E2EE by design ✓ Easy (Android app) ~ Paid app
Satellite (Garmin inReach) ✓ Yes — truly global ✓ Maximum ~ Identifiable account ~ Provider sees metadata ✓ Easy ✗ Subscription required

When the Network is the Weapon,
Use One They Can't Shut Down

Radar creates an encrypted, peer-to-peer mesh network between Android devices using Bluetooth and Wi-Fi Direct. No internet. No SIM card. No server. No single point that a government or corporation can switch off. Available on Android.

Learn About Radar → Surveillance & Privacy